Tcl Source Code

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Overview
Comment:Implement TIP 445
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | core-8-branch
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SHA3-256: bfd27f785778b32b0cc6b37a85c80707dfd7bdecffe95bc3a2dbd19f8573d267
User & Date: dkf 2018-11-06 09:51:55
Context
2018-11-06
11:12
Implement TIP 501 check-in: 2ac1f40dd9 user: dkf tags: core-8-branch
10:04
merge core-8-branch check-in: 33398e15df user: dkf tags: tip-501
09:51
Implement TIP 445 check-in: bfd27f7857 user: dkf tags: core-8-branch
09:50
Implement TIP 406 check-in: 5f51fd5a97 user: dkf tags: core-8-branch
2018-10-29
15:37
merge 8.7 Closed-Leaf check-in: 9220ded810 user: dgp tags: tip-445
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

compat/zlib/win32/zlib1.dll became a regular file.

cannot compute difference between binary files

compat/zlib/win64/zlib1.dll became a regular file.

cannot compute difference between binary files

compat/zlib/zlib2ansi became a regular file.

doc/GetCwd.3 became executable.

doc/GetVersion.3 became executable.

doc/lset.n became executable.

Changes to generic/tcl.decls.

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    Tcl_Obj *TclZipfs_TclLibrary(void)
}
declare 635 {
    int TclZipfs_MountBuffer(Tcl_Interp *interp, const char *mountPoint,
	    unsigned char *data, size_t datalen, int copy)
}



















# ----- BASELINE -- FOR -- 8.7.0 ----- #

##############################################################################

# Define the platform specific public Tcl interface. These functions are only
# available on the designated platform.







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    Tcl_Obj *TclZipfs_TclLibrary(void)
}
declare 635 {
    int TclZipfs_MountBuffer(Tcl_Interp *interp, const char *mountPoint,
	    unsigned char *data, size_t datalen, int copy)
}

# TIP #445
declare 636 {
    void Tcl_FreeIntRep(Tcl_Obj *objPtr)
}
declare 637 {
    char *Tcl_InitStringRep(Tcl_Obj *objPtr, const char *bytes,
	    unsigned int numBytes)
}
declare 638 {
    Tcl_ObjIntRep *Tcl_FetchIntRep(Tcl_Obj *objPtr, const Tcl_ObjType *typePtr)
}
declare 639 {
    void Tcl_StoreIntRep(Tcl_Obj *objPtr, const Tcl_ObjType *typePtr,
	    const Tcl_ObjIntRep *irPtr)
}
declare 640 {
    int Tcl_HasStringRep(Tcl_Obj *objPtr)
}
# ----- BASELINE -- FOR -- 8.7.0 ----- #

##############################################################################

# Define the platform specific public Tcl interface. These functions are only
# available on the designated platform.

Changes to generic/tcl.h.

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				 * type's internal representation. */
    Tcl_SetFromAnyProc *setFromAnyProc;
				/* Called to convert the object's internal rep
				 * to this type. Frees the internal rep of the
				 * old type. Returns TCL_ERROR on failure. */
} Tcl_ObjType;
























/*
 * One of the following structures exists for each object in the Tcl system.
 * An object stores a value as either a string, some internal representation,
 * or both.
 */

typedef struct Tcl_Obj {
................................................................................
				 * array as a readonly value. */
    int length;			/* The number of bytes at *bytes, not
				 * including the terminating null. */
    const Tcl_ObjType *typePtr;	/* Denotes the object's type. Always
				 * corresponds to the type of the object's
				 * internal rep. NULL indicates the object has
				 * no internal rep (has no type). */
    union {			/* The internal representation: */
	long longValue;		/*   - an long integer value. */
	double doubleValue;	/*   - a double-precision floating value. */
	void *otherValuePtr;	/*   - another, type-specific value, not used
				 *     internally any more. */
	Tcl_WideInt wideValue;	/*   - a long long value. */
	struct {		/*   - internal rep as two pointers.
				 *     Many uses in Tcl, including a bignum's
				 *     tightly packed fields, where the alloc,
				 *     used and signum flags are packed into
				 *     ptr2 with everything else hung off
				 *     ptr1. */
	    void *ptr1;
	    void *ptr2;
	} twoPtrValue;
	struct {		/*   - internal rep as a pointer and a long,
				 *     not used internally any more. */
	    void *ptr;
	    unsigned long value;
	} ptrAndLongRep;
    } internalRep;
} Tcl_Obj;

/*
 * Macros to increment and decrement a Tcl_Obj's reference count, and to test
 * whether an object is shared (i.e. has reference count > 1). Note: clients
 * should use Tcl_DecrRefCount() when they are finished using an object, and
 * should never call TclFreeObj() directly. TclFreeObj() is only defined and






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				 * type's internal representation. */
    Tcl_SetFromAnyProc *setFromAnyProc;
				/* Called to convert the object's internal rep
				 * to this type. Frees the internal rep of the
				 * old type. Returns TCL_ERROR on failure. */
} Tcl_ObjType;

/*
 * The following structure stores an internal representation (intrep) for
 * a Tcl value. An intrep is associated with an Tcl_ObjType when both
 * are stored in the same Tcl_Obj.  The routines of the Tcl_ObjType govern
 * the handling of the intrep.
 */

typedef union Tcl_ObjIntRep {	/* The internal representation: */
    long longValue;		/*   - an long integer value. */
    double doubleValue;		/*   - a double-precision floating value. */
    void *otherValuePtr;	/*   - another, type-specific value, */
				/*     not used internally any more. */
    Tcl_WideInt wideValue;	/*   - an integer value >= 64bits */
    struct {			/*   - internal rep as two pointers. */
	void *ptr1;		
	void *ptr2;
    } twoPtrValue;
    struct {			/*   - internal rep as a pointer and a long, */
	void *ptr;		/*     not used internally any more. */
	unsigned long value;
    } ptrAndLongRep;
} Tcl_ObjIntRep;

/*
 * One of the following structures exists for each object in the Tcl system.
 * An object stores a value as either a string, some internal representation,
 * or both.
 */

typedef struct Tcl_Obj {
................................................................................
				 * array as a readonly value. */
    int length;			/* The number of bytes at *bytes, not
				 * including the terminating null. */
    const Tcl_ObjType *typePtr;	/* Denotes the object's type. Always
				 * corresponds to the type of the object's
				 * internal rep. NULL indicates the object has
				 * no internal rep (has no type). */
    Tcl_ObjIntRep internalRep;	/* The internal representation: */




















} Tcl_Obj;

/*
 * Macros to increment and decrement a Tcl_Obj's reference count, and to test
 * whether an object is shared (i.e. has reference count > 1). Note: clients
 * should use Tcl_DecrRefCount() when they are finished using an object, and
 * should never call TclFreeObj() directly. TclFreeObj() is only defined and

Changes to generic/tclAssembly.c.

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 *-   returnCodeBranch
 *-   tclooNext, tclooNextClass
 */

#include "tclInt.h"
#include "tclCompile.h"
#include "tclOOInt.h"


/*
 * Structure that represents a range of instructions in the bytecode.
 */

typedef struct CodeRange {
    int startOffset;		/* Start offset in the bytecode array */
................................................................................
static int		CheckStrictlyPositive(Tcl_Interp*, int);
static ByteCode *	CompileAssembleObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
static void		CompileEmbeddedScript(AssemblyEnv*, Tcl_Token*,
			    const TalInstDesc*);
static int		DefineLabel(AssemblyEnv* envPtr, const char* label);
static void		DeleteMirrorJumpTable(JumptableInfo* jtPtr);
static void		DupAssembleCodeInternalRep(Tcl_Obj* src,
			    Tcl_Obj* dest);
static void		FillInJumpOffsets(AssemblyEnv*);
static int		CreateMirrorJumpTable(AssemblyEnv* assemEnvPtr,
			    Tcl_Obj* jumpTable);
static int		FindLocalVar(AssemblyEnv* envPtr,
			    Tcl_Token** tokenPtrPtr);
static int		FinishAssembly(AssemblyEnv*);
static void		FreeAssembleCodeInternalRep(Tcl_Obj *objPtr);
static void		FreeAssemblyEnv(AssemblyEnv*);
static int		GetBooleanOperand(AssemblyEnv*, Tcl_Token**, int*);
static int		GetListIndexOperand(AssemblyEnv*, Tcl_Token**, int*);
static int		GetIntegerOperand(AssemblyEnv*, Tcl_Token**, int*);
static int		GetNextOperand(AssemblyEnv*, Tcl_Token**, Tcl_Obj**);
static void		LookForFreshCatches(BasicBlock*, BasicBlock**);
static void		MoveCodeForJumps(AssemblyEnv*, int);
................................................................................
			    int codeLen, int flags);
static void		UnstackExpiredCatches(CompileEnv*, BasicBlock*, int,
			    BasicBlock**, int*);

/*
 * Tcl_ObjType that describes bytecode emitted by the assembler.
 */




static const Tcl_ObjType assembleCodeType = {
    "assemblecode",
    FreeAssembleCodeInternalRep, /* freeIntRepProc */
    DupAssembleCodeInternalRep,	 /* dupIntRepProc */
    NULL,			 /* updateStringProc */
    NULL			 /* setFromAnyProc */
................................................................................
				/* Bytecode resulting from the assembly */
    Namespace* namespacePtr;	/* Namespace in which variable and command
				 * names in the bytecode resolve */
    int status;			/* Status return from Tcl_AssembleCode */
    const char* source;		/* String representation of the source code */
    int sourceLen;		/* Length of the source code in bytes */


    /*
     * Get the expression ByteCode from the object. If it exists, make sure it
     * is valid in the current context.
     */

    if (objPtr->typePtr == &assembleCodeType) {


	namespacePtr = iPtr->varFramePtr->nsPtr;
	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
	if (((Interp *) *codePtr->interpHandle == iPtr)
		&& (codePtr->compileEpoch == iPtr->compileEpoch)
		&& (codePtr->nsPtr == namespacePtr)
		&& (codePtr->nsEpoch == namespacePtr->resolverEpoch)
		&& (codePtr->localCachePtr
			== iPtr->varFramePtr->localCachePtr)) {
	    return codePtr;
	}

	/*
	 * Not valid, so free it and regenerate.
	 */

	TclFreeIntRep(objPtr);
    }

    /*
     * Set up the compilation environment, and assemble the code.
     */

    source = TclGetStringFromObj(objPtr, &sourceLen);
................................................................................
 *-----------------------------------------------------------------------------
 */

static void
FreeAssembleCodeInternalRep(
    Tcl_Obj *objPtr)
{
    ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;




    TclReleaseByteCode(codePtr);
}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */






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 *-   returnCodeBranch
 *-   tclooNext, tclooNextClass
 */

#include "tclInt.h"
#include "tclCompile.h"
#include "tclOOInt.h"
#include <assert.h>

/*
 * Structure that represents a range of instructions in the bytecode.
 */

typedef struct CodeRange {
    int startOffset;		/* Start offset in the bytecode array */
................................................................................
static int		CheckStrictlyPositive(Tcl_Interp*, int);
static ByteCode *	CompileAssembleObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
static void		CompileEmbeddedScript(AssemblyEnv*, Tcl_Token*,
			    const TalInstDesc*);
static int		DefineLabel(AssemblyEnv* envPtr, const char* label);
static void		DeleteMirrorJumpTable(JumptableInfo* jtPtr);


static void		FillInJumpOffsets(AssemblyEnv*);
static int		CreateMirrorJumpTable(AssemblyEnv* assemEnvPtr,
			    Tcl_Obj* jumpTable);
static int		FindLocalVar(AssemblyEnv* envPtr,
			    Tcl_Token** tokenPtrPtr);
static int		FinishAssembly(AssemblyEnv*);

static void		FreeAssemblyEnv(AssemblyEnv*);
static int		GetBooleanOperand(AssemblyEnv*, Tcl_Token**, int*);
static int		GetListIndexOperand(AssemblyEnv*, Tcl_Token**, int*);
static int		GetIntegerOperand(AssemblyEnv*, Tcl_Token**, int*);
static int		GetNextOperand(AssemblyEnv*, Tcl_Token**, Tcl_Obj**);
static void		LookForFreshCatches(BasicBlock*, BasicBlock**);
static void		MoveCodeForJumps(AssemblyEnv*, int);
................................................................................
			    int codeLen, int flags);
static void		UnstackExpiredCatches(CompileEnv*, BasicBlock*, int,
			    BasicBlock**, int*);

/*
 * Tcl_ObjType that describes bytecode emitted by the assembler.
 */

static Tcl_FreeInternalRepProc	FreeAssembleCodeInternalRep;
static Tcl_DupInternalRepProc	DupAssembleCodeInternalRep;

static const Tcl_ObjType assembleCodeType = {
    "assemblecode",
    FreeAssembleCodeInternalRep, /* freeIntRepProc */
    DupAssembleCodeInternalRep,	 /* dupIntRepProc */
    NULL,			 /* updateStringProc */
    NULL			 /* setFromAnyProc */
................................................................................
				/* Bytecode resulting from the assembly */
    Namespace* namespacePtr;	/* Namespace in which variable and command
				 * names in the bytecode resolve */
    int status;			/* Status return from Tcl_AssembleCode */
    const char* source;		/* String representation of the source code */
    int sourceLen;		/* Length of the source code in bytes */


    /*
     * Get the expression ByteCode from the object. If it exists, make sure it
     * is valid in the current context.
     */

    ByteCodeGetIntRep(objPtr, &assembleCodeType, codePtr);

    if (codePtr) {
	namespacePtr = iPtr->varFramePtr->nsPtr;

	if (((Interp *) *codePtr->interpHandle == iPtr)
		&& (codePtr->compileEpoch == iPtr->compileEpoch)
		&& (codePtr->nsPtr == namespacePtr)
		&& (codePtr->nsEpoch == namespacePtr->resolverEpoch)
		&& (codePtr->localCachePtr
			== iPtr->varFramePtr->localCachePtr)) {
	    return codePtr;
	}

	/*
	 * Not valid, so free it and regenerate.
	 */

	Tcl_StoreIntRep(objPtr, &assembleCodeType, NULL);
    }

    /*
     * Set up the compilation environment, and assemble the code.
     */

    source = TclGetStringFromObj(objPtr, &sourceLen);
................................................................................
 *-----------------------------------------------------------------------------
 */

static void
FreeAssembleCodeInternalRep(
    Tcl_Obj *objPtr)
{
    ByteCode *codePtr;

    ByteCodeGetIntRep(objPtr, &assembleCodeType, codePtr);
    assert(codePtr != NULL);

    TclReleaseByteCode(codePtr);
}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

Changes to generic/tclBasic.c.

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    args = ckalloc(dataPtr->numArgs * sizeof(Tcl_Value));
    for (j = 1, k = 0; j < objc; ++j, ++k) {
	/* TODO: Convert to TclGetNumberFromObj? */
	valuePtr = objv[j];
	result = Tcl_GetDoubleFromObj(NULL, valuePtr, &d);
#ifdef ACCEPT_NAN
	if ((result != TCL_OK) && (valuePtr->typePtr == &tclDoubleType)) {




	    d = valuePtr->internalRep.doubleValue;
	    result = TCL_OK;

	}
#endif
	if (result != TCL_OK) {
	    /*
	     * We have a non-numeric argument.
	     */

................................................................................
    /*
     * An object which either has no string rep or else is a canonical list is
     * guaranteed to have been generated dynamically: bail out, this cannot
     * have a usable absolute location. _Do not touch_ the information the set
     * up by the caller. It knows better than us.
     */

    if ((obj->bytes == NULL) || TclListObjIsCanonical(obj)) {
	return;
    }

    /*
     * First look for location information recorded in the argument
     * stack. That is nearest.
     */
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {



	Tcl_SetObjResult(interp, objv[1]);
	return TCL_OK;

    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }

    if (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK) {
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {



	Tcl_SetObjResult(interp, objv[1]);
	return TCL_OK;

    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }

    if (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK) {
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {



	Tcl_SetObjResult(interp, objv[1]);
	return TCL_OK;

    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    if ((d >= 0.0) && TclIsInfinite(d)
	    && (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK)) {
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {



	d = objv[1]->internalRep.doubleValue;
	Tcl_ResetResult(interp);
	code = TCL_OK;

    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    errno = 0;
    return CheckDoubleResult(interp, func(d));
................................................................................

    if (objc != 3) {
	MathFuncWrongNumArgs(interp, 3, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d1);
#ifdef ACCEPT_NAN
    if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) {
	d1 = objv[1]->internalRep.doubleValue;



	Tcl_ResetResult(interp);
	code = TCL_OK;

    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[2], &d2);
#ifdef ACCEPT_NAN
    if ((code != TCL_OK) && (objv[2]->typePtr == &tclDoubleType)) {
	d2 = objv[2]->internalRep.doubleValue;



	Tcl_ResetResult(interp);
	code = TCL_OK;

    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    errno = 0;
    return CheckDoubleResult(interp, func(d1, d2));
................................................................................

    if (type == TCL_NUMBER_INT) {
	Tcl_WideInt l = *((const Tcl_WideInt *) ptr);

	if (l > (Tcl_WideInt)0) {
	    goto unChanged;
	} else if (l == (Tcl_WideInt)0) {
	    const char *string = objv[1]->bytes;
	    if (string) {
		while (*string != '0') {


		    if (*string == '-') {
			Tcl_SetObjResult(interp, Tcl_NewLongObj(0));
			return TCL_OK;
		    }
		    string++;
		}
	    }
	    goto unChanged;
	} else if (l == WIDE_MIN) {
	    TclInitBignumFromWideInt(&big, l);
	    goto tooLarge;
	}
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    if (Tcl_GetDoubleFromObj(interp, objv[1], &dResult) != TCL_OK) {
#ifdef ACCEPT_NAN
	if (objv[1]->typePtr == &tclDoubleType) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
#endif
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewDoubleObj(dResult));






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3863
3864
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3870
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3873
3874
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3876
3877
3878
3879
3880
3881
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3883
3884
....
6152
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6159
6160
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6166
....
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....
7469
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....
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7756
....
7779
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....
7884
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7886
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7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
    args = ckalloc(dataPtr->numArgs * sizeof(Tcl_Value));
    for (j = 1, k = 0; j < objc; ++j, ++k) {
	/* TODO: Convert to TclGetNumberFromObj? */
	valuePtr = objv[j];
	result = Tcl_GetDoubleFromObj(NULL, valuePtr, &d);
#ifdef ACCEPT_NAN
	if (result != TCL_OK) {
	    const Tcl_ObjIntRep *irPtr
		    = Tcl_FetchIntRep(valuePtr, &tclDoubleType);

	    if (irPtr) {
		d = irPtr->doubleValue;
		result = TCL_OK;
	    }
	}
#endif
	if (result != TCL_OK) {
	    /*
	     * We have a non-numeric argument.
	     */

................................................................................
    /*
     * An object which either has no string rep or else is a canonical list is
     * guaranteed to have been generated dynamically: bail out, this cannot
     * have a usable absolute location. _Do not touch_ the information the set
     * up by the caller. It knows better than us.
     */

    if (!TclHasStringRep(obj) || TclListObjIsCanonical(obj)) {
	return;
    }

    /*
     * First look for location information recorded in the argument
     * stack. That is nearest.
     */
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if (code != TCL_OK) {
	const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType);

	if (irPtr) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }

    if (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK) {
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if (code != TCL_OK) {
	const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType);

	if (irPtr) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }

    if (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK) {
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if (code != TCL_OK) {
	const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType);

	if (irPtr) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    if ((d >= 0.0) && TclIsInfinite(d)
	    && (Tcl_GetBignumFromObj(NULL, objv[1], &big) == TCL_OK)) {
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d);
#ifdef ACCEPT_NAN
    if (code != TCL_OK) {
	const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType);

	if (irPtr) {
	    d = irPtr->doubleValue;
	    Tcl_ResetResult(interp);
	    code = TCL_OK;
	}
    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    errno = 0;
    return CheckDoubleResult(interp, func(d));
................................................................................

    if (objc != 3) {
	MathFuncWrongNumArgs(interp, 3, objc, objv);
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[1], &d1);
#ifdef ACCEPT_NAN
    if (code != TCL_OK) {
	const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType);

	if (irPtr) {
	    d1 = irPtr->doubleValue;
	    Tcl_ResetResult(interp);
	    code = TCL_OK;
	}
    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    code = Tcl_GetDoubleFromObj(interp, objv[2], &d2);
#ifdef ACCEPT_NAN
    if (code != TCL_OK) {
	const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType);

	if (irPtr) {
	    d2 = irPtr->doubleValue;
	    Tcl_ResetResult(interp);
	    code = TCL_OK;
	}
    }
#endif
    if (code != TCL_OK) {
	return TCL_ERROR;
    }
    errno = 0;
    return CheckDoubleResult(interp, func(d1, d2));
................................................................................

    if (type == TCL_NUMBER_INT) {
	Tcl_WideInt l = *((const Tcl_WideInt *) ptr);

	if (l > (Tcl_WideInt)0) {
	    goto unChanged;
	} else if (l == (Tcl_WideInt)0) {
	    if (TclHasStringRep(objv[1])) {
		int numBytes;
		const char *bytes = TclGetStringFromObj(objv[1], &numBytes);

		while (numBytes) {
		    if (*bytes == '-') {
			Tcl_SetObjResult(interp, Tcl_NewLongObj(0));
			return TCL_OK;
		    }
		    bytes++; numBytes--;
		}
	    }
	    goto unChanged;
	} else if (l == WIDE_MIN) {
	    TclInitBignumFromWideInt(&big, l);
	    goto tooLarge;
	}
................................................................................

    if (objc != 2) {
	MathFuncWrongNumArgs(interp, 2, objc, objv);
	return TCL_ERROR;
    }
    if (Tcl_GetDoubleFromObj(interp, objv[1], &dResult) != TCL_OK) {
#ifdef ACCEPT_NAN
	if (Tcl_FetchIntRep(objv[1], &tclDoubleType)) {
	    Tcl_SetObjResult(interp, objv[1]);
	    return TCL_OK;
	}
#endif
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewDoubleObj(dResult));

Changes to generic/tclBinary.c.

11
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425
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431
...
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452
453

454

455



456


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...
486
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492





493
494
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496

497

498

499



500
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...
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...
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619
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...
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722
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733



734

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736



737


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....
1974
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1982
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1985
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....
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1996
1997
1998
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2000

2001
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2003

2004
2005
2006
2007
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2010
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tommath.h"

#include <math.h>


/*
 * The following constants are used by GetFormatSpec to indicate various
 * special conditions in the parsing of a format specifier.
 */

#define BINARY_ALL -1		/* Use all elements in the argument. */
................................................................................

/*
 * Prototypes for local procedures defined in this file:
 */

static void		DupByteArrayInternalRep(Tcl_Obj *srcPtr,
			    Tcl_Obj *copyPtr);


static int		FormatNumber(Tcl_Interp *interp, int type,
			    Tcl_Obj *src, unsigned char **cursorPtr);
static void		FreeByteArrayInternalRep(Tcl_Obj *objPtr);

static int		GetFormatSpec(const char **formatPtr, char *cmdPtr,
			    int *countPtr, int *flagsPtr);
static Tcl_Obj *	ScanNumber(unsigned char *buffer, int type,
			    int flags, Tcl_HashTable **numberCachePtr);
static int		SetByteArrayFromAny(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
static void		UpdateStringOfByteArray(Tcl_Obj *listPtr);
................................................................................
 * changes now in place are the limit of what can be done short of
 * interface repair.  They provide a great expansion of the histories
 * over which bytearray values can be useful in the meanwhile.
 */

static const Tcl_ObjType properByteArrayType = {
    "bytearray",
    FreeByteArrayInternalRep,
    DupByteArrayInternalRep,
    UpdateStringOfByteArray,
    NULL
};

const Tcl_ObjType tclByteArrayType = {
    "bytearray",
    FreeByteArrayInternalRep,
................................................................................
 * The following structure is the internal rep for a ByteArray object. Keeps
 * track of how much memory has been used and how much has been allocated for
 * the byte array to enable growing and shrinking of the ByteArray object with
 * fewer mallocs.
 */

typedef struct ByteArray {
    int used;			/* The number of bytes used in the byte
				 * array. */
    int allocated;		/* The amount of space actually allocated
				 * minus 1 byte. */
    unsigned char bytes[1];	/* The array of bytes. The actual size of this
				 * field depends on the 'allocated' field
				 * above. */
} ByteArray;

#define BYTEARRAY_SIZE(len) \
		((unsigned) (TclOffset(ByteArray, bytes) + (len)))
#define GET_BYTEARRAY(objPtr) \
		((ByteArray *) (objPtr)->internalRep.twoPtrValue.ptr1)
#define SET_BYTEARRAY(objPtr, baPtr) \
		(objPtr)->internalRep.twoPtrValue.ptr1 = (void *) (baPtr)

int
TclIsPureByteArray(
    Tcl_Obj * objPtr)
{
    return (objPtr->typePtr == &properByteArrayType);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewByteArrayObj --
 *
................................................................................
    Tcl_Obj *objPtr,		/* Object to initialize as a ByteArray. */
    const unsigned char *bytes,	/* The array of bytes to use as the new
				   value. May be NULL even if length > 0. */
    int length)			/* Length of the array of bytes, which must
				   be >= 0. */
{
    ByteArray *byteArrayPtr;


    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayObj");
    }
    TclFreeIntRep(objPtr);
    TclInvalidateStringRep(objPtr);

    if (length < 0) {
	length = 0;
    }
    byteArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    byteArrayPtr->used = length;
    byteArrayPtr->allocated = length;

    if ((bytes != NULL) && (length > 0)) {
	memcpy(byteArrayPtr->bytes, bytes, (size_t) length);
    }
    objPtr->typePtr = &properByteArrayType;
    SET_BYTEARRAY(objPtr, byteArrayPtr);

}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetByteArrayFromObj --
 *
................................................................................
unsigned char *
Tcl_GetByteArrayFromObj(
    Tcl_Obj *objPtr,		/* The ByteArray object. */
    int *lengthPtr)		/* If non-NULL, filled with length of the
				 * array of bytes in the ByteArray object. */
{
    ByteArray *baPtr;


    if ((objPtr->typePtr != &properByteArrayType)

	    && (objPtr->typePtr != &tclByteArrayType)) {

	SetByteArrayFromAny(NULL, objPtr);



    }


    baPtr = GET_BYTEARRAY(objPtr);

    if (lengthPtr != NULL) {
	*lengthPtr = baPtr->used;
    }
    return (unsigned char *) baPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_SetByteArrayLength --
 *
................................................................................

unsigned char *
Tcl_SetByteArrayLength(
    Tcl_Obj *objPtr,		/* The ByteArray object. */
    int length)			/* New length for internal byte array. */
{
    ByteArray *byteArrayPtr;






    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayLength");
    }

    if ((objPtr->typePtr != &properByteArrayType)

	    && (objPtr->typePtr != &tclByteArrayType)) {

	SetByteArrayFromAny(NULL, objPtr);



    }



    byteArrayPtr = GET_BYTEARRAY(objPtr);
    if (length > byteArrayPtr->allocated) {
	byteArrayPtr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(length));
	byteArrayPtr->allocated = length;
	SET_BYTEARRAY(objPtr, byteArrayPtr);
    }
    TclInvalidateStringRep(objPtr);
    byteArrayPtr->used = length;
    return byteArrayPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetByteArrayFromAny --
................................................................................
    Tcl_Obj *objPtr)		/* The object to convert to type ByteArray. */
{
    size_t length;
    int improper = 0;
    const char *src, *srcEnd;
    unsigned char *dst;
    ByteArray *byteArrayPtr;
    Tcl_UniChar ch = 0;

    if (objPtr->typePtr == &properByteArrayType) {
	return TCL_OK;
    }
    if (objPtr->typePtr == &tclByteArrayType) {
	return TCL_OK;
    }

    src = TclGetString(objPtr);
    length = objPtr->length;
    srcEnd = src + length;

    byteArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    for (dst = byteArrayPtr->bytes; src < srcEnd; ) {

	src += TclUtfToUniChar(src, &ch);
	improper = improper || (ch > 255);
	*dst++ = UCHAR(ch);
    }

    byteArrayPtr->used = dst - byteArrayPtr->bytes;
    byteArrayPtr->allocated = length;

    TclFreeIntRep(objPtr);
    objPtr->typePtr = improper ? &tclByteArrayType : &properByteArrayType;
    SET_BYTEARRAY(objPtr, byteArrayPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeByteArrayInternalRep --
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeByteArrayInternalRep(
    Tcl_Obj *objPtr)		/* Object with internal rep to free. */
{
    ckfree(GET_BYTEARRAY(objPtr));
    objPtr->typePtr = NULL;







}
 
/*
 *----------------------------------------------------------------------
 *
 * DupByteArrayInternalRep --
 *
................................................................................
 */

static void
DupByteArrayInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    int length;
    ByteArray *srcArrayPtr, *copyArrayPtr;


    srcArrayPtr = GET_BYTEARRAY(srcPtr);





















    length = srcArrayPtr->used;

    copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length);
    SET_BYTEARRAY(copyPtr, copyArrayPtr);


    copyPtr->typePtr = srcPtr->typePtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * UpdateStringOfByteArray --
 *
 *	Update the string representation for a ByteArray data object. Note:
 *	This procedure does not invalidate an existing old string rep so
 *	storage will be lost if this has not already been done.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The object's string is set to a valid string that results from the
 *	ByteArray-to-string conversion.
 *
 *	The object becomes a string object -- the internal rep is discarded
 *	and the typePtr becomes NULL.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfByteArray(
    Tcl_Obj *objPtr)		/* ByteArray object whose string rep to
				 * update. */
{
    int i, length, size;
    unsigned char *src;
    char *dst;
    ByteArray *byteArrayPtr;

    byteArrayPtr = GET_BYTEARRAY(objPtr);
    src = byteArrayPtr->bytes;
    length = byteArrayPtr->used;


    /*
     * How much space will string rep need?
     */

    size = length;
    for (i = 0; i < length && size >= 0; i++) {
	if ((src[i] == 0) || (src[i] > 127)) {
	    size++;
	}
    }
    if (size < 0) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }

    dst = ckalloc(size + 1);
    objPtr->bytes = dst;
    objPtr->length = size;

    if (size == length) {
	memcpy(dst, src, (size_t) size);
	dst[size] = '\0';


    } else {


	for (i = 0; i < length; i++) {
	    dst += Tcl_UniCharToUtf(src[i], dst);
	}
	*dst = '\0';
    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclAppendBytesToByteArray --
................................................................................
void
TclAppendBytesToByteArray(
    Tcl_Obj *objPtr,
    const unsigned char *bytes,
    int len)
{
    ByteArray *byteArrayPtr;
    int needed;


    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray");
    }
    if (len < 0) {
	Tcl_Panic("%s must be called with definite number of bytes to append",
		"TclAppendBytesToByteArray");
    }
    if (len == 0) {
	/* Append zero bytes is a no-op. */
	return;
    }



    if ((objPtr->typePtr != &properByteArrayType)

	    && (objPtr->typePtr != &tclByteArrayType)) {

	SetByteArrayFromAny(NULL, objPtr);



    }


    byteArrayPtr = GET_BYTEARRAY(objPtr);

    if (len > INT_MAX - byteArrayPtr->used) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }

    needed = byteArrayPtr->used + len;
    /*
     * If we need to, resize the allocated space in the byte array.
     */

    if (needed > byteArrayPtr->allocated) {
	ByteArray *ptr = NULL;
	int attempt;

	if (needed <= INT_MAX/2) {
	    /* Try to allocate double the total space that is needed. */
	    attempt = 2 * needed;
	    ptr = attemptckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
	}
	if (ptr == NULL) {
	    /* Try to allocate double the increment that is needed (plus). */
	    unsigned int limit = INT_MAX - needed;
	    unsigned int extra = len + TCL_MIN_GROWTH;
	    int growth = (int) ((extra > limit) ? limit : extra);

	    attempt = needed + growth;
	    ptr = attemptckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
	}
	if (ptr == NULL) {
	    /* Last chance: Try to allocate exactly what is needed. */
	    attempt = needed;
	    ptr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
	}
	byteArrayPtr = ptr;
	byteArrayPtr->allocated = attempt;
	SET_BYTEARRAY(objPtr, byteArrayPtr);
    }

    if (bytes) {
	memcpy(byteArrayPtr->bytes + byteArrayPtr->used, bytes, len);
    }
    byteArrayPtr->used += len;
    TclInvalidateStringRep(objPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclInitBinaryCmd --
................................................................................
	/*
	 * Double-precision floating point values. Tcl_GetDoubleFromObj
	 * returns TCL_ERROR for NaN, but we can check by comparing the
	 * object's type pointer.
	 */

	if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) {
	    if (src->typePtr != &tclDoubleType) {

		return TCL_ERROR;
	    }
	    dvalue = src->internalRep.doubleValue;

	}
	CopyNumber(&dvalue, *cursorPtr, sizeof(double), type);
	*cursorPtr += sizeof(double);
	return TCL_OK;

    case 'f':
    case 'r':
................................................................................
	/*
	 * Single-precision floating point values. Tcl_GetDoubleFromObj
	 * returns TCL_ERROR for NaN, but we can check by comparing the
	 * object's type pointer.
	 */

	if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) {
	    if (src->typePtr != &tclDoubleType) {

		return TCL_ERROR;
	    }
	    dvalue = src->internalRep.doubleValue;

	}

	/*
	 * Because some compilers will generate floating point exceptions on
	 * an overflow cast (e.g. Borland), we restrict the values to the
	 * valid range for float.
	 */






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 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tommath.h"

#include <math.h>
#include <assert.h>

/*
 * The following constants are used by GetFormatSpec to indicate various
 * special conditions in the parsing of a format specifier.
 */

#define BINARY_ALL -1		/* Use all elements in the argument. */
................................................................................

/*
 * Prototypes for local procedures defined in this file:
 */

static void		DupByteArrayInternalRep(Tcl_Obj *srcPtr,
			    Tcl_Obj *copyPtr);
static void		DupProperByteArrayInternalRep(Tcl_Obj *srcPtr,
			    Tcl_Obj *copyPtr);
static int		FormatNumber(Tcl_Interp *interp, int type,
			    Tcl_Obj *src, unsigned char **cursorPtr);
static void		FreeByteArrayInternalRep(Tcl_Obj *objPtr);
static void		FreeProperByteArrayInternalRep(Tcl_Obj *objPtr);
static int		GetFormatSpec(const char **formatPtr, char *cmdPtr,
			    int *countPtr, int *flagsPtr);
static Tcl_Obj *	ScanNumber(unsigned char *buffer, int type,
			    int flags, Tcl_HashTable **numberCachePtr);
static int		SetByteArrayFromAny(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
static void		UpdateStringOfByteArray(Tcl_Obj *listPtr);
................................................................................
 * changes now in place are the limit of what can be done short of
 * interface repair.  They provide a great expansion of the histories
 * over which bytearray values can be useful in the meanwhile.
 */

static const Tcl_ObjType properByteArrayType = {
    "bytearray",
    FreeProperByteArrayInternalRep,
    DupProperByteArrayInternalRep,
    UpdateStringOfByteArray,
    NULL
};

const Tcl_ObjType tclByteArrayType = {
    "bytearray",
    FreeByteArrayInternalRep,
................................................................................
 * The following structure is the internal rep for a ByteArray object. Keeps
 * track of how much memory has been used and how much has been allocated for
 * the byte array to enable growing and shrinking of the ByteArray object with
 * fewer mallocs.
 */

typedef struct ByteArray {
    unsigned int used;		/* The number of bytes used in the byte
				 * array. */
    unsigned int allocated;	/* The amount of space actually allocated
				 * minus 1 byte. */
    unsigned char bytes[1];	/* The array of bytes. The actual size of this
				 * field depends on the 'allocated' field
				 * above. */
} ByteArray;

#define BYTEARRAY_SIZE(len) \
		((unsigned) (TclOffset(ByteArray, bytes) + (len)))
#define GET_BYTEARRAY(irPtr) ((ByteArray *) (irPtr)->twoPtrValue.ptr1)

#define SET_BYTEARRAY(irPtr, baPtr) \
		(irPtr)->twoPtrValue.ptr1 = (void *) (baPtr)

int
TclIsPureByteArray(
    Tcl_Obj * objPtr)
{
    return (NULL != Tcl_FetchIntRep(objPtr, &properByteArrayType));
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewByteArrayObj --
 *
................................................................................
    Tcl_Obj *objPtr,		/* Object to initialize as a ByteArray. */
    const unsigned char *bytes,	/* The array of bytes to use as the new
				   value. May be NULL even if length > 0. */
    int length)			/* Length of the array of bytes, which must
				   be >= 0. */
{
    ByteArray *byteArrayPtr;
    Tcl_ObjIntRep ir;

    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayObj");
    }

    TclInvalidateStringRep(objPtr);

    if (length < 0) {
	length = 0;
    }
    byteArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    byteArrayPtr->used = length;
    byteArrayPtr->allocated = length;

    if ((bytes != NULL) && (length > 0)) {
	memcpy(byteArrayPtr->bytes, bytes, (size_t) length);
    }
    SET_BYTEARRAY(&ir, byteArrayPtr);

    Tcl_StoreIntRep(objPtr, &properByteArrayType, &ir);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetByteArrayFromObj --
 *
................................................................................
unsigned char *
Tcl_GetByteArrayFromObj(
    Tcl_Obj *objPtr,		/* The ByteArray object. */
    int *lengthPtr)		/* If non-NULL, filled with length of the
				 * array of bytes in the ByteArray object. */
{
    ByteArray *baPtr;
    const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);


    if (irPtr == NULL) {
	irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType);
	if (irPtr == NULL) {
	    SetByteArrayFromAny(NULL, objPtr);
	    irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);
	    if (irPtr == NULL) {
		irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType);
	    }
	}
    }
    baPtr = GET_BYTEARRAY(irPtr);

    if (lengthPtr != NULL) {
	*lengthPtr = baPtr->used;
    }
    return baPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_SetByteArrayLength --
 *
................................................................................

unsigned char *
Tcl_SetByteArrayLength(
    Tcl_Obj *objPtr,		/* The ByteArray object. */
    int length)			/* New length for internal byte array. */
{
    ByteArray *byteArrayPtr;
    unsigned newLength;
    Tcl_ObjIntRep *irPtr;

    assert(length >= 0);
    newLength = (unsigned int)length;

    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayLength");
    }

    irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);
    if (irPtr == NULL) {
	irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType);
	if (irPtr == NULL) {
	    SetByteArrayFromAny(NULL, objPtr);
	    irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);
	    if (irPtr == NULL) {
		irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType);
	    }
	}
    }

    byteArrayPtr = GET_BYTEARRAY(irPtr);
    if (newLength > byteArrayPtr->allocated) {
	byteArrayPtr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(newLength));
	byteArrayPtr->allocated = newLength;
	SET_BYTEARRAY(irPtr, byteArrayPtr);
    }
    TclInvalidateStringRep(objPtr);
    byteArrayPtr->used = newLength;
    return byteArrayPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetByteArrayFromAny --
................................................................................
    Tcl_Obj *objPtr)		/* The object to convert to type ByteArray. */
{
    size_t length;
    int improper = 0;
    const char *src, *srcEnd;
    unsigned char *dst;
    ByteArray *byteArrayPtr;
    Tcl_ObjIntRep ir;

    if (Tcl_FetchIntRep(objPtr, &properByteArrayType)) {
	return TCL_OK;
    }
    if (Tcl_FetchIntRep(objPtr, &tclByteArrayType)) {
	return TCL_OK;
    }

    src = TclGetString(objPtr);
    length = objPtr->length;
    srcEnd = src + length;

    byteArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    for (dst = byteArrayPtr->bytes; src < srcEnd; ) {
	Tcl_UniChar ch = 0;
	src += TclUtfToUniChar(src, &ch);
	improper = improper || (ch > 255);
	*dst++ = UCHAR(ch);
    }

    byteArrayPtr->used = dst - byteArrayPtr->bytes;
    byteArrayPtr->allocated = length;

    SET_BYTEARRAY(&ir, byteArrayPtr);
    Tcl_StoreIntRep(objPtr,
	    improper ? &tclByteArrayType : &properByteArrayType, &ir);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeByteArrayInternalRep --
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeByteArrayInternalRep(
    Tcl_Obj *objPtr)		/* Object with internal rep to free. */
{
    ckfree(GET_BYTEARRAY(Tcl_FetchIntRep(objPtr, &tclByteArrayType)));

}

static void
FreeProperByteArrayInternalRep(
    Tcl_Obj *objPtr)		/* Object with internal rep to free. */
{
    ckfree(GET_BYTEARRAY(Tcl_FetchIntRep(objPtr, &properByteArrayType)));
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupByteArrayInternalRep --
 *
................................................................................
 */

static void
DupByteArrayInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    unsigned int length;
    ByteArray *srcArrayPtr, *copyArrayPtr;
    Tcl_ObjIntRep ir;

    srcArrayPtr = GET_BYTEARRAY(Tcl_FetchIntRep(srcPtr, &tclByteArrayType));
    length = srcArrayPtr->used;

    copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length);

    SET_BYTEARRAY(&ir, copyArrayPtr);
    Tcl_StoreIntRep(copyPtr, &tclByteArrayType, &ir);
}

static void
DupProperByteArrayInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    unsigned int length;
    ByteArray *srcArrayPtr, *copyArrayPtr;
    Tcl_ObjIntRep ir;

    srcArrayPtr = GET_BYTEARRAY(Tcl_FetchIntRep(srcPtr, &properByteArrayType));
    length = srcArrayPtr->used;

    copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length));
    copyArrayPtr->used = length;
    copyArrayPtr->allocated = length;
    memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length);


    SET_BYTEARRAY(&ir, copyArrayPtr);
    Tcl_StoreIntRep(copyPtr, &properByteArrayType, &ir);
}
 
/*
 *----------------------------------------------------------------------
 *
 * UpdateStringOfByteArray --
 *
 *	Update the string representation for a ByteArray data object.


 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The object's string is set to a valid string that results from the
 *	ByteArray-to-string conversion.
 *



 *----------------------------------------------------------------------
 */

static void
UpdateStringOfByteArray(
    Tcl_Obj *objPtr)		/* ByteArray object whose string rep to
				 * update. */
{
    const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);




    ByteArray *byteArrayPtr = GET_BYTEARRAY(irPtr);
    unsigned char *src = byteArrayPtr->bytes;
    unsigned int i, length = byteArrayPtr->used;
    unsigned int size = length;

    /*
     * How much space will string rep need?
     */


    for (i = 0; i < length && size <= INT_MAX; i++) {
	if ((src[i] == 0) || (src[i] > 127)) {
	    size++;
	}
    }
    if (size > INT_MAX) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }





    if (size == length) {


	char *dst = Tcl_InitStringRep(objPtr, (char *)src, size);
	TclOOM(dst, size);
    } else {
	char *dst = Tcl_InitStringRep(objPtr, NULL, size);
	TclOOM(dst, size);
	for (i = 0; i < length; i++) {
	    dst += Tcl_UniCharToUtf(src[i], dst);
	}
	(void)Tcl_InitStringRep(objPtr, NULL, size);
    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclAppendBytesToByteArray --
................................................................................
void
TclAppendBytesToByteArray(
    Tcl_Obj *objPtr,
    const unsigned char *bytes,
    int len)
{
    ByteArray *byteArrayPtr;
    unsigned int length, needed;
    Tcl_ObjIntRep *irPtr;

    if (Tcl_IsShared(objPtr)) {
	Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray");
    }
    if (len < 0) {
	Tcl_Panic("%s must be called with definite number of bytes to append",
		"TclAppendBytesToByteArray");
    }
    if (len == 0) {
	/* Append zero bytes is a no-op. */
	return;
    }

    length = (unsigned int)len;

    irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);
    if (irPtr == NULL) {
	irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType);
	if (irPtr == NULL) {
	    SetByteArrayFromAny(NULL, objPtr);
	    irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType);
	    if (irPtr == NULL) {
		irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType);
	    }
	}
    }
    byteArrayPtr = GET_BYTEARRAY(irPtr);

    if (length > INT_MAX - byteArrayPtr->used) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }

    needed = byteArrayPtr->used + length;
    /*
     * If we need to, resize the allocated space in the byte array.
     */

    if (needed > byteArrayPtr->allocated) {
	ByteArray *ptr = NULL;
	unsigned int attempt;

	if (needed <= INT_MAX/2) {
	    /* Try to allocate double the total space that is needed. */
	    attempt = 2 * needed;
	    ptr = attemptckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
	}
	if (ptr == NULL) {
	    /* Try to allocate double the increment that is needed (plus). */
	    unsigned int limit = INT_MAX - needed;
	    unsigned int extra = length + TCL_MIN_GROWTH;
	    int growth = (int) ((extra > limit) ? limit : extra);

	    attempt = needed + growth;
	    ptr = attemptckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
	}
	if (ptr == NULL) {
	    /* Last chance: Try to allocate exactly what is needed. */
	    attempt = needed;
	    ptr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(attempt));
	}
	byteArrayPtr = ptr;
	byteArrayPtr->allocated = attempt;
	SET_BYTEARRAY(irPtr, byteArrayPtr);
    }

    if (bytes) {
	memcpy(byteArrayPtr->bytes + byteArrayPtr->used, bytes, length);
    }
    byteArrayPtr->used += length;
    TclInvalidateStringRep(objPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclInitBinaryCmd --
................................................................................
	/*
	 * Double-precision floating point values. Tcl_GetDoubleFromObj
	 * returns TCL_ERROR for NaN, but we can check by comparing the
	 * object's type pointer.
	 */

	if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) {
	    const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(src, &tclDoubleType);
	    if (irPtr == NULL) {
		return TCL_ERROR;
	    }

	    dvalue = irPtr->doubleValue;
	}
	CopyNumber(&dvalue, *cursorPtr, sizeof(double), type);
	*cursorPtr += sizeof(double);
	return TCL_OK;

    case 'f':
    case 'r':
................................................................................
	/*
	 * Single-precision floating point values. Tcl_GetDoubleFromObj
	 * returns TCL_ERROR for NaN, but we can check by comparing the
	 * object's type pointer.
	 */

	if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) {
	    const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(src, &tclDoubleType);
	    if (irPtr == NULL) {
		return TCL_ERROR;
	    }

	    dvalue = irPtr->doubleValue;
	}

	/*
	 * Because some compilers will generate floating point exceptions on
	 * an overflow cast (e.g. Borland), we restrict the values to the
	 * valid range for float.
	 */

Changes to generic/tclClock.c.

448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
    }

    /*
     * fields.seconds could be an unsigned number that overflowed. Make sure
     * that it isn't.
     */

    if (objv[1]->typePtr == &tclBignumType) {
	Tcl_SetObjResult(interp, literals[LIT_INTEGER_VALUE_TOO_LARGE]);
	return TCL_ERROR;
    }

    /*
     * Convert UTC time to local.
     */






|







448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
    }

    /*
     * fields.seconds could be an unsigned number that overflowed. Make sure
     * that it isn't.
     */

    if (Tcl_FetchIntRep(objv[1], &tclBignumType)) {
	Tcl_SetObjResult(interp, literals[LIT_INTEGER_VALUE_TOO_LARGE]);
	return TCL_ERROR;
    }

    /*
     * Convert UTC time to local.
     */

Changes to generic/tclCmdIL.c.

535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
...
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
InfoBodyCmd(
    ClientData dummy,		/* Not used. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register Interp *iPtr = (Interp *) interp;
    const char *name;
    Proc *procPtr;
    Tcl_Obj *bodyPtr, *resultPtr;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "procname");
	return TCL_ERROR;
    }

    name = TclGetString(objv[1]);
................................................................................
     * bytecompiled - in that case, the return was a copy of the body's string
     * rep. In order to better isolate the implementation details of the
     * compiler/engine subsystem, we now always return a copy of the string
     * rep. It is important to return a copy so that later manipulations of
     * the object do not invalidate the internal rep.
     */

    bodyPtr = procPtr->bodyPtr;
    if (bodyPtr->bytes == NULL) {
	/*
	 * The string rep might not be valid if the procedure has never been
	 * run before. [Bug #545644]
	 */

	TclGetString(bodyPtr);
    }
    resultPtr = Tcl_NewStringObj(bodyPtr->bytes, bodyPtr->length);

    Tcl_SetObjResult(interp, resultPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * InfoCmdCountCmd --






|

|







 







|
<
<
<
<
<
<
<
<
<
<
|







535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
...
562
563
564
565
566
567
568
569










570
571
572
573
574
575
576
577
InfoBodyCmd(
    ClientData dummy,		/* Not used. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    register Interp *iPtr = (Interp *) interp;
    const char *name, *bytes;
    Proc *procPtr;
    int numBytes;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "procname");
	return TCL_ERROR;
    }

    name = TclGetString(objv[1]);
................................................................................
     * bytecompiled - in that case, the return was a copy of the body's string
     * rep. In order to better isolate the implementation details of the
     * compiler/engine subsystem, we now always return a copy of the string
     * rep. It is important to return a copy so that later manipulations of
     * the object do not invalidate the internal rep.
     */

    bytes = Tcl_GetStringFromObj(procPtr->bodyPtr, &numBytes);










    Tcl_SetObjResult(interp, Tcl_NewStringObj(bytes, numBytes));
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * InfoCmdCountCmd --

Changes to generic/tclCmdMZ.c.

1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
....
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
....
1899
1900
1901
1902
1903
1904
1905
1906

1907
1908
1909
1910
1911
1912
1913
    case STR_IS_CONTROL:
	chcomp = Tcl_UniCharIsControl;
	break;
    case STR_IS_DIGIT:
	chcomp = Tcl_UniCharIsDigit;
	break;
    case STR_IS_DOUBLE: {
	if ((objPtr->typePtr == &tclDoubleType) ||
		(objPtr->typePtr == &tclIntType) ||
		(objPtr->typePtr == &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
	break;
    }
    case STR_IS_GRAPH:
	chcomp = Tcl_UniCharIsGraph;
	break;
    case STR_IS_INT:
    case STR_IS_ENTIER:
	if ((objPtr->typePtr == &tclIntType) ||
		(objPtr->typePtr == &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
    }

    /*
     * This test is tricky, but has to be that way or you get other strange
     * inconsistencies (see test string-10.20.1 for illustration why!)
     */

    if (objv[objc-2]->typePtr == &tclDictType && objv[objc-2]->bytes == NULL){

	int i, done;
	Tcl_DictSearch search;

	/*
	 * We know the type exactly, so all dict operations will succeed for
	 * sure. This shortens this code quite a bit.
	 */






|
|
|







 







|
|







 







|
>







1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
....
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
....
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
    case STR_IS_CONTROL:
	chcomp = Tcl_UniCharIsControl;
	break;
    case STR_IS_DIGIT:
	chcomp = Tcl_UniCharIsDigit;
	break;
    case STR_IS_DOUBLE: {
	if (Tcl_FetchIntRep(objPtr, &tclDoubleType) ||
		Tcl_FetchIntRep(objPtr, &tclIntType) ||
		Tcl_FetchIntRep(objPtr, &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
	break;
    }
    case STR_IS_GRAPH:
	chcomp = Tcl_UniCharIsGraph;
	break;
    case STR_IS_INT:
    case STR_IS_ENTIER:
	if (Tcl_FetchIntRep(objPtr, &tclIntType) ||
		Tcl_FetchIntRep(objPtr, &tclBignumType)) {
	    break;
	}
	string1 = TclGetStringFromObj(objPtr, &length1);
	if (length1 == 0) {
	    if (strict) {
		result = 0;
	    }
................................................................................
    }

    /*
     * This test is tricky, but has to be that way or you get other strange
     * inconsistencies (see test string-10.20.1 for illustration why!)
     */

    if (!TclHasStringRep(objv[objc-2]) 
	    && Tcl_FetchIntRep(objv[objc-2], &tclDictType)){
	int i, done;
	Tcl_DictSearch search;

	/*
	 * We know the type exactly, so all dict operations will succeed for
	 * sure. This shortens this code quite a bit.
	 */

Changes to generic/tclCompExpr.c.

2472
2473
2474
2475
2476
2477
2478
2479
2480



2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
		    Tcl_Obj *objPtr = Tcl_GetObjResult(interp);

		    /*
		     * Don't generate a string rep, but if we have one
		     * already, then use it to share via the literal table.
		     */

		    if (objPtr->bytes) {
			Tcl_Obj *tableValue;




			index = TclRegisterLiteral(envPtr, objPtr->bytes,
				objPtr->length, 0);
			tableValue = TclFetchLiteral(envPtr, index);
			if ((tableValue->typePtr == NULL) &&
				(objPtr->typePtr != NULL)) {
			    /*
			     * Same intrep surgery as for OT_LITERAL.
			     */







|

>
>
>

|
<







2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485

2486
2487
2488
2489
2490
2491
2492
		    Tcl_Obj *objPtr = Tcl_GetObjResult(interp);

		    /*
		     * Don't generate a string rep, but if we have one
		     * already, then use it to share via the literal table.
		     */

		    if (TclHasStringRep(objPtr)) {
			Tcl_Obj *tableValue;
			int numBytes;
			const char *bytes
				= Tcl_GetStringFromObj(objPtr, &numBytes);

			index = TclRegisterLiteral(envPtr, bytes, numBytes, 0);

			tableValue = TclFetchLiteral(envPtr, index);
			if ((tableValue->typePtr == NULL) &&
				(objPtr->typePtr != NULL)) {
			    /*
			     * Same intrep surgery as for OT_LITERAL.
			     */

Changes to generic/tclCompile.c.

721
722
723
724
725
726
727

728
729
730
731
732
733
734
735
736
737
738
739
740
741
...
970
971
972
973
974
975
976
977



978
979
980
981
982
983
984
....
1300
1301
1302
1303
1304
1305
1306
1307


1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318

1319
1320
1321

1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
....
1368
1369
1370
1371
1372
1373
1374
1375



1376
1377
1378
1379
1380
1381
1382
....
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
static const Tcl_ObjType substCodeType = {
    "substcode",		/* name */
    FreeSubstCodeInternalRep,	/* freeIntRepProc */
    DupByteCodeInternalRep,	/* dupIntRepProc - shared with bytecode */
    NULL,			/* updateStringProc */
    NULL,			/* setFromAnyProc */
};


/*
 * Helper macros.
 */

#define TclIncrUInt4AtPtr(ptr, delta) \
    TclStoreInt4AtPtr(TclGetUInt4AtPtr(ptr)+(delta), (ptr));
 
/*
 *----------------------------------------------------------------------
 *
 * TclSetByteCodeFromAny --
 *
 *	Part of the bytecode Tcl object type implementation. Attempts to
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeByteCodeInternalRep(
    register Tcl_Obj *objPtr)	/* Object whose internal rep to free. */
{
    register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;




    TclReleaseByteCode(codePtr);
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    Tcl_Interp *interp,
    Tcl_Obj *objPtr,
    int flags)
{
    Interp *iPtr = (Interp *) interp;
    ByteCode *codePtr = NULL;

    if (objPtr->typePtr == &substCodeType) {


	Namespace *nsPtr = iPtr->varFramePtr->nsPtr;

	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
	if (flags != PTR2INT(objPtr->internalRep.twoPtrValue.ptr2)
		|| ((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != nsPtr)
		|| (codePtr->nsEpoch != nsPtr->resolverEpoch)
		|| (codePtr->localCachePtr !=
		iPtr->varFramePtr->localCachePtr)) {
	    TclFreeIntRep(objPtr);

	}
    }
    if (objPtr->typePtr != &substCodeType) {

	CompileEnv compEnv;
	int numBytes;
	const char *bytes = TclGetStringFromObj(objPtr, &numBytes);

	/* TODO: Check for more TIP 280 */
	TclInitCompileEnv(interp, &compEnv, bytes, numBytes, NULL, 0);

	TclSubstCompile(interp, bytes, numBytes, flags, 1, &compEnv);

	TclEmitOpcode(INST_DONE, &compEnv);
	codePtr = TclInitByteCodeObj(objPtr, &substCodeType, &compEnv);
	TclFreeCompileEnv(&compEnv);

	objPtr->internalRep.twoPtrValue.ptr1 = codePtr;
	objPtr->internalRep.twoPtrValue.ptr2 = INT2PTR(flags);
	if (iPtr->varFramePtr->localCachePtr) {
	    codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
	    codePtr->localCachePtr->refCount++;
	}
#ifdef TCL_COMPILE_DEBUG
	if (tclTraceCompile >= 2) {
	    TclPrintByteCodeObj(interp, objPtr);
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeSubstCodeInternalRep(
    register Tcl_Obj *objPtr)	/* Object whose internal rep to free. */
{
    register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;




    TclReleaseByteCode(codePtr);
}

static void
ReleaseCmdWordData(
    ExtCmdLoc *eclPtr)
................................................................................
    codePtr = TclInitByteCode(envPtr);

    /*
     * Free the old internal rep then convert the object to a bytecode object
     * by making its internal rep point to the just compiled ByteCode.
     */

    TclFreeIntRep(objPtr);
    objPtr->internalRep.twoPtrValue.ptr1 = codePtr;
    objPtr->typePtr = typePtr;
    return codePtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclFindCompiledLocal --






>






|







 







|
>
>
>







 







|
>
>


<
|






|
>


<
>













<
|







 







|
>
>
>







 







|
<
<







721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
...
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
....
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315

1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326

1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340

1341
1342
1343
1344
1345
1346
1347
1348
....
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
....
2916
2917
2918
2919
2920
2921
2922
2923


2924
2925
2926
2927
2928
2929
2930
static const Tcl_ObjType substCodeType = {
    "substcode",		/* name */
    FreeSubstCodeInternalRep,	/* freeIntRepProc */
    DupByteCodeInternalRep,	/* dupIntRepProc - shared with bytecode */
    NULL,			/* updateStringProc */
    NULL,			/* setFromAnyProc */
};
#define SubstFlags(objPtr) (objPtr)->internalRep.twoPtrValue.ptr2

/*
 * Helper macros.
 */

#define TclIncrUInt4AtPtr(ptr, delta) \
    TclStoreInt4AtPtr(TclGetUInt4AtPtr(ptr)+(delta), (ptr))
 
/*
 *----------------------------------------------------------------------
 *
 * TclSetByteCodeFromAny --
 *
 *	Part of the bytecode Tcl object type implementation. Attempts to
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeByteCodeInternalRep(
    register Tcl_Obj *objPtr)	/* Object whose internal rep to free. */
{
    ByteCode *codePtr;

    ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr);
    assert(codePtr != NULL);

    TclReleaseByteCode(codePtr);
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    Tcl_Interp *interp,
    Tcl_Obj *objPtr,
    int flags)
{
    Interp *iPtr = (Interp *) interp;
    ByteCode *codePtr = NULL;

    ByteCodeGetIntRep(objPtr, &substCodeType, codePtr);

    if (codePtr != NULL) {
	Namespace *nsPtr = iPtr->varFramePtr->nsPtr;


	if (flags != PTR2INT(SubstFlags(objPtr))
		|| ((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != nsPtr)
		|| (codePtr->nsEpoch != nsPtr->resolverEpoch)
		|| (codePtr->localCachePtr !=
		iPtr->varFramePtr->localCachePtr)) {
	    Tcl_StoreIntRep(objPtr, &substCodeType, NULL);
	    codePtr = NULL;
	}
    }

    if (codePtr == NULL) {
	CompileEnv compEnv;
	int numBytes;
	const char *bytes = TclGetStringFromObj(objPtr, &numBytes);

	/* TODO: Check for more TIP 280 */
	TclInitCompileEnv(interp, &compEnv, bytes, numBytes, NULL, 0);

	TclSubstCompile(interp, bytes, numBytes, flags, 1, &compEnv);

	TclEmitOpcode(INST_DONE, &compEnv);
	codePtr = TclInitByteCodeObj(objPtr, &substCodeType, &compEnv);
	TclFreeCompileEnv(&compEnv);


	SubstFlags(objPtr) = INT2PTR(flags);
	if (iPtr->varFramePtr->localCachePtr) {
	    codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
	    codePtr->localCachePtr->refCount++;
	}
#ifdef TCL_COMPILE_DEBUG
	if (tclTraceCompile >= 2) {
	    TclPrintByteCodeObj(interp, objPtr);
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeSubstCodeInternalRep(
    register Tcl_Obj *objPtr)	/* Object whose internal rep to free. */
{
    register ByteCode *codePtr;

    ByteCodeGetIntRep(objPtr, &substCodeType, codePtr);
    assert(codePtr != NULL);

    TclReleaseByteCode(codePtr);
}

static void
ReleaseCmdWordData(
    ExtCmdLoc *eclPtr)
................................................................................
    codePtr = TclInitByteCode(envPtr);

    /*
     * Free the old internal rep then convert the object to a bytecode object
     * by making its internal rep point to the just compiled ByteCode.
     */

    ByteCodeSetIntRep(objPtr, typePtr, codePtr);


    return codePtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclFindCompiledLocal --

Changes to generic/tclCompile.h.

510
511
512
513
514
515
516

















517
518
519
520
521
522
523
				 * names and initialisation data for local
				 * variables. */
#ifdef TCL_COMPILE_STATS
    Tcl_Time createTime;	/* Absolute time when the ByteCode was
				 * created. */
#endif /* TCL_COMPILE_STATS */
} ByteCode;

















 
/*
 * Opcodes for the Tcl bytecode instructions. These must correspond to the
 * entries in the table of instruction descriptions, tclInstructionTable, in
 * tclCompile.c. Also, the order and number of the expression opcodes (e.g.,
 * INST_LOR) must match the entries in the array operatorStrings in
 * tclExecute.c.






>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>







510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
				 * names and initialisation data for local
				 * variables. */
#ifdef TCL_COMPILE_STATS
    Tcl_Time createTime;	/* Absolute time when the ByteCode was
				 * created. */
#endif /* TCL_COMPILE_STATS */
} ByteCode;

#define ByteCodeSetIntRep(objPtr, typePtr, codePtr)			\
    do {								\
	Tcl_ObjIntRep ir;						\
	ir.twoPtrValue.ptr1 = (codePtr);				\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), (typePtr), &ir);			\
    } while (0)



#define ByteCodeGetIntRep(objPtr, typePtr, codePtr)			\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), (typePtr));			\
	(codePtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)
 
/*
 * Opcodes for the Tcl bytecode instructions. These must correspond to the
 * entries in the table of instruction descriptions, tclInstructionTable, in
 * tclCompile.c. Also, the order and number of the expression opcodes (e.g.,
 * INST_LOR) must match the entries in the array operatorStrings in
 * tclExecute.c.

Changes to generic/tclDecls.h.

1871
1872
1873
1874
1875
1876
1877














1878
1879
1880
1881
1882
1883
1884
....
2542
2543
2544
2545
2546
2547
2548





2549
2550
2551
2552
2553
2554
2555
....
3844
3845
3846
3847
3848
3849
3850










3851
3852
3853
3854
3855
3856
3857
				const char *mountPoint);
/* 634 */
EXTERN Tcl_Obj *	TclZipfs_TclLibrary(void);
/* 635 */
EXTERN int		TclZipfs_MountBuffer(Tcl_Interp *interp,
				const char *mountPoint, unsigned char *data,
				size_t datalen, int copy);















typedef struct {
    const struct TclPlatStubs *tclPlatStubs;
    const struct TclIntStubs *tclIntStubs;
    const struct TclIntPlatStubs *tclIntPlatStubs;
} TclStubHooks;

................................................................................
    int (*tcl_FSUnloadFile) (Tcl_Interp *interp, Tcl_LoadHandle handlePtr); /* 629 */
    void (*tcl_ZlibStreamSetCompressionDictionary) (Tcl_ZlibStream zhandle, Tcl_Obj *compressionDictionaryObj); /* 630 */
    Tcl_Channel (*tcl_OpenTcpServerEx) (Tcl_Interp *interp, const char *service, const char *host, unsigned int flags, Tcl_TcpAcceptProc *acceptProc, ClientData callbackData); /* 631 */
    int (*tclZipfs_Mount) (Tcl_Interp *interp, const char *mountPoint, const char *zipname, const char *passwd); /* 632 */
    int (*tclZipfs_Unmount) (Tcl_Interp *interp, const char *mountPoint); /* 633 */
    Tcl_Obj * (*tclZipfs_TclLibrary) (void); /* 634 */
    int (*tclZipfs_MountBuffer) (Tcl_Interp *interp, const char *mountPoint, unsigned char *data, size_t datalen, int copy); /* 635 */





} TclStubs;

extern const TclStubs *tclStubsPtr;

#ifdef __cplusplus
}
#endif
................................................................................
	(tclStubsPtr->tclZipfs_Mount) /* 632 */
#define TclZipfs_Unmount \
	(tclStubsPtr->tclZipfs_Unmount) /* 633 */
#define TclZipfs_TclLibrary \
	(tclStubsPtr->tclZipfs_TclLibrary) /* 634 */
#define TclZipfs_MountBuffer \
	(tclStubsPtr->tclZipfs_MountBuffer) /* 635 */











#endif /* defined(USE_TCL_STUBS) */

/* !END!: Do not edit above this line. */

#if defined(USE_TCL_STUBS)
#   undef Tcl_CreateInterp






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				const char *mountPoint);
/* 634 */
EXTERN Tcl_Obj *	TclZipfs_TclLibrary(void);
/* 635 */
EXTERN int		TclZipfs_MountBuffer(Tcl_Interp *interp,
				const char *mountPoint, unsigned char *data,
				size_t datalen, int copy);
/* 636 */
EXTERN void		Tcl_FreeIntRep(Tcl_Obj *objPtr);
/* 637 */
EXTERN char *		Tcl_InitStringRep(Tcl_Obj *objPtr, const char *bytes,
				unsigned int numBytes);
/* 638 */
EXTERN Tcl_ObjIntRep *	Tcl_FetchIntRep(Tcl_Obj *objPtr,
				const Tcl_ObjType *typePtr);
/* 639 */
EXTERN void		Tcl_StoreIntRep(Tcl_Obj *objPtr,
				const Tcl_ObjType *typePtr,
				const Tcl_ObjIntRep *irPtr);
/* 640 */
EXTERN int		Tcl_HasStringRep(Tcl_Obj *objPtr);

typedef struct {
    const struct TclPlatStubs *tclPlatStubs;
    const struct TclIntStubs *tclIntStubs;
    const struct TclIntPlatStubs *tclIntPlatStubs;
} TclStubHooks;

................................................................................
    int (*tcl_FSUnloadFile) (Tcl_Interp *interp, Tcl_LoadHandle handlePtr); /* 629 */
    void (*tcl_ZlibStreamSetCompressionDictionary) (Tcl_ZlibStream zhandle, Tcl_Obj *compressionDictionaryObj); /* 630 */
    Tcl_Channel (*tcl_OpenTcpServerEx) (Tcl_Interp *interp, const char *service, const char *host, unsigned int flags, Tcl_TcpAcceptProc *acceptProc, ClientData callbackData); /* 631 */
    int (*tclZipfs_Mount) (Tcl_Interp *interp, const char *mountPoint, const char *zipname, const char *passwd); /* 632 */
    int (*tclZipfs_Unmount) (Tcl_Interp *interp, const char *mountPoint); /* 633 */
    Tcl_Obj * (*tclZipfs_TclLibrary) (void); /* 634 */
    int (*tclZipfs_MountBuffer) (Tcl_Interp *interp, const char *mountPoint, unsigned char *data, size_t datalen, int copy); /* 635 */
    void (*tcl_FreeIntRep) (Tcl_Obj *objPtr); /* 636 */
    char * (*tcl_InitStringRep) (Tcl_Obj *objPtr, const char *bytes, unsigned int numBytes); /* 637 */
    Tcl_ObjIntRep * (*tcl_FetchIntRep) (Tcl_Obj *objPtr, const Tcl_ObjType *typePtr); /* 638 */
    void (*tcl_StoreIntRep) (Tcl_Obj *objPtr, const Tcl_ObjType *typePtr, const Tcl_ObjIntRep *irPtr); /* 639 */
    int (*tcl_HasStringRep) (Tcl_Obj *objPtr); /* 640 */
} TclStubs;

extern const TclStubs *tclStubsPtr;

#ifdef __cplusplus
}
#endif
................................................................................
	(tclStubsPtr->tclZipfs_Mount) /* 632 */
#define TclZipfs_Unmount \
	(tclStubsPtr->tclZipfs_Unmount) /* 633 */
#define TclZipfs_TclLibrary \
	(tclStubsPtr->tclZipfs_TclLibrary) /* 634 */
#define TclZipfs_MountBuffer \
	(tclStubsPtr->tclZipfs_MountBuffer) /* 635 */
#define Tcl_FreeIntRep \
	(tclStubsPtr->tcl_FreeIntRep) /* 636 */
#define Tcl_InitStringRep \
	(tclStubsPtr->tcl_InitStringRep) /* 637 */
#define Tcl_FetchIntRep \
	(tclStubsPtr->tcl_FetchIntRep) /* 638 */
#define Tcl_StoreIntRep \
	(tclStubsPtr->tcl_StoreIntRep) /* 639 */
#define Tcl_HasStringRep \
	(tclStubsPtr->tcl_HasStringRep) /* 640 */

#endif /* defined(USE_TCL_STUBS) */

/* !END!: Do not edit above this line. */

#if defined(USE_TCL_STUBS)
#   undef Tcl_CreateInterp

Changes to generic/tclDictObj.c.

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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tommath.h"


/*
 * Forward declaration.
 */
struct Dict;

/*
................................................................................
    unsigned int epoch; 	/* Epoch counter */
    size_t refCount;		/* Reference counter (see above) */
    Tcl_Obj *chain;		/* Linked list used for invalidating the
				 * string representations of updated nested
				 * dictionaries. */
} Dict;

/*
 * Accessor macro for converting between a Tcl_Obj* and a Dict. Note that this
 * must be assignable as well as readable.
 */

#define DICT(dictObj)   ((dictObj)->internalRep.twoPtrValue.ptr1)

/*
 * The structure below defines the dictionary object type by means of
 * functions that can be invoked by generic object code.
 */

const Tcl_ObjType tclDictType = {
    "dict",
    FreeDictInternalRep,		/* freeIntRepProc */
    DupDictInternalRep,			/* dupIntRepProc */
    UpdateStringOfDict,			/* updateStringProc */
    SetDictFromAny			/* setFromAnyProc */
};
















/*
 * The type of the specially adapted version of the Tcl_Obj*-containing hash
 * table defined in the tclObj.c code. This version differs in that it
 * allocates a bit more space in each hash entry in order to hold the pointers
 * used to keep the hash entries in a linked list.
 *
................................................................................
 */

static void
DupDictInternalRep(
    Tcl_Obj *srcPtr,
    Tcl_Obj *copyPtr)
{
    Dict *oldDict = DICT(srcPtr);
    Dict *newDict = ckalloc(sizeof(Dict));
    ChainEntry *cPtr;



    /*
     * Copy values across from the old hash table.
     */

    InitChainTable(newDict);
    for (cPtr=oldDict->entryChainHead ; cPtr!=NULL ; cPtr=cPtr->nextPtr) {
................................................................................
    newDict->chain = NULL;
    newDict->refCount = 1;

    /*
     * Store in the object.
     */

    DICT(copyPtr) = newDict;
    copyPtr->internalRep.twoPtrValue.ptr2 = NULL;
    copyPtr->typePtr = &tclDictType;
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeDictInternalRep --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeDictInternalRep(
    Tcl_Obj *dictPtr)
{
    Dict *dict = DICT(dictPtr);



    if (dict->refCount-- <= 1) {
	DeleteDict(dict);
    }
    dictPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DeleteDict --
 *
................................................................................

static void
UpdateStringOfDict(
    Tcl_Obj *dictPtr)
{
#define LOCAL_SIZE 64
    char localFlags[LOCAL_SIZE], *flagPtr = NULL;
    Dict *dict = DICT(dictPtr);
    ChainEntry *cPtr;
    Tcl_Obj *keyPtr, *valuePtr;
    int i, length, bytesNeeded = 0;
    const char *elem;
    char *dst;

    /*
     * This field is the most useful one in the whole hash structure, and it
     * is not exposed by any API function...
     */







    int numElems = dict->table.numEntries * 2;

    /* Handle empty list case first, simplifies what follows */
    if (numElems == 0) {
	dictPtr->bytes = &tclEmptyString;
	dictPtr->length = 0;
	return;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

................................................................................
    }
    bytesNeeded += numElems;

    /*
     * Pass 2: copy into string rep buffer.
     */

    dictPtr->length = bytesNeeded - 1;
    dictPtr->bytes = ckalloc(bytesNeeded);
    dst = dictPtr->bytes;
    for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) {
	flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 );
	keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
	elem = TclGetStringFromObj(keyPtr, &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i]);
	*dst++ = ' ';

	flagPtr[i+1] |= TCL_DONT_QUOTE_HASH;
	valuePtr = Tcl_GetHashValue(&cPtr->entry);
	elem = TclGetStringFromObj(valuePtr, &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i+1]);
	*dst++ = ' ';
    }
    dictPtr->bytes[dictPtr->length] = '\0';

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }
}
 
/*
................................................................................

    /*
     * Since lists and dictionaries have very closely-related string
     * representations (i.e. the same parsing code) we can safely special-case
     * the conversion from lists to dictionaries.
     */

    if (objPtr->typePtr == &tclListType) {
	int objc, i;
	Tcl_Obj **objv;

	/* Cannot fail, we already know the Tcl_ObjType is "list". */
	TclListObjGetElements(NULL, objPtr, &objc, &objv);
	if (objc & 1) {
	    goto missingValue;
................................................................................
		goto missingValue;
	    }

	    if (literal) {
		TclNewStringObj(keyPtr, elemStart, elemSize);
	    } else {
		/* Avoid double copy */


		TclNewObj(keyPtr);
		keyPtr->bytes = ckalloc((unsigned) elemSize + 1);




		keyPtr->length = TclCopyAndCollapse(elemSize, elemStart,
			keyPtr->bytes);
	    }

	    if (TclFindDictElement(interp, nextElem, (limit - nextElem),
		    &elemStart, &nextElem, &elemSize, &literal) != TCL_OK) {
		TclDecrRefCount(keyPtr);
		goto errorInFindDictElement;
	    }

	    if (literal) {
		TclNewStringObj(valuePtr, elemStart, elemSize);
	    } else {
		/* Avoid double copy */


		TclNewObj(valuePtr);
		valuePtr->bytes = ckalloc((unsigned) elemSize + 1);




		valuePtr->length = TclCopyAndCollapse(elemSize, elemStart,
			valuePtr->bytes);
	    }

	    /* Store key and value in the hash table we're building. */
	    hPtr = CreateChainEntry(dict, keyPtr, &isNew);
	    if (!isNew) {
		Tcl_Obj *discardedValue = Tcl_GetHashValue(hPtr);

................................................................................

    /*
     * Free the old internalRep before setting the new one. We do this as late
     * as possible to allow the conversion code, in particular
     * Tcl_GetStringFromObj, to use that old internalRep.
     */

    TclFreeIntRep(objPtr);
    dict->epoch = 1;
    dict->chain = NULL;
    dict->refCount = 1;
    DICT(objPtr) = dict;
    objPtr->internalRep.twoPtrValue.ptr2 = NULL;
    objPtr->typePtr = &tclDictType;
    return TCL_OK;

  missingValue:
    if (interp != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing value to go with key", -1));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
    }
  errorInFindDictElement:
    DeleteChainTable(dict);
    ckfree(dict);
    return TCL_ERROR;
}

















 
/*
 *----------------------------------------------------------------------
 *
 * TclTraceDictPath --
 *
 *	Trace through a tree of dictionaries using the array of keys given. If
................................................................................
    int keyc,
    Tcl_Obj *const keyv[],
    int flags)
{
    Dict *dict, *newDict;
    int i;

    if (dictPtr->typePtr != &tclDictType

	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return NULL;
    }
    dict = DICT(dictPtr);


    if (flags & DICT_PATH_UPDATE) {
	dict->chain = NULL;
    }

    for (i=0 ; i<keyc ; i++) {
	Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&dict->table, keyv[i]);
	Tcl_Obj *tmpObj;
................................................................................

	    hPtr = CreateChainEntry(dict, keyv[i], &isNew);
	    tmpObj = Tcl_NewDictObj();
	    Tcl_IncrRefCount(tmpObj);
	    Tcl_SetHashValue(hPtr, tmpObj);
	} else {
	    tmpObj = Tcl_GetHashValue(hPtr);
	    if (tmpObj->typePtr != &tclDictType




		    && SetDictFromAny(interp, tmpObj) != TCL_OK) {
		return NULL;

	    }
	}

	newDict = DICT(tmpObj);
	if (flags & DICT_PATH_UPDATE) {
	    if (Tcl_IsShared(tmpObj)) {
		TclDecrRefCount(tmpObj);
		tmpObj = Tcl_DuplicateObj(tmpObj);
		Tcl_IncrRefCount(tmpObj);
		Tcl_SetHashValue(hPtr, tmpObj);
		dict->epoch++;
		newDict = DICT(tmpObj);
	    }

	    newDict->chain = dictPtr;
	}
	dict = newDict;
	dictPtr = tmpObj;
    }
................................................................................
 *----------------------------------------------------------------------
 */

static void
InvalidateDictChain(
    Tcl_Obj *dictObj)
{
    Dict *dict = DICT(dictObj);




    do {

	TclInvalidateStringRep(dictObj);



	dict->epoch++;
	dictObj = dict->chain;
	if (dictObj == NULL) {
	    break;
	}
	dict->chain = NULL;
	dict = DICT(dictObj);
    } while (dict != NULL);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_DictObjPut --
................................................................................
    Tcl_HashEntry *hPtr;
    int isNew;

    if (Tcl_IsShared(dictPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_DictObjPut");
    }

    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }

    if (dictPtr->bytes != NULL) {
	TclInvalidateStringRep(dictPtr);
    }
    dict = DICT(dictPtr);
    hPtr = CreateChainEntry(dict, keyPtr, &isNew);



    Tcl_IncrRefCount(valuePtr);
    if (!isNew) {
	Tcl_Obj *oldValuePtr = Tcl_GetHashValue(hPtr);

	TclDecrRefCount(oldValuePtr);
    }
    Tcl_SetHashValue(hPtr, valuePtr);
................................................................................
    Tcl_Obj *dictPtr,
    Tcl_Obj *keyPtr,
    Tcl_Obj **valuePtrPtr)
{
    Dict *dict;
    Tcl_HashEntry *hPtr;

    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	*valuePtrPtr = NULL;
	return TCL_ERROR;
    }

    dict = DICT(dictPtr);
    hPtr = Tcl_FindHashEntry(&dict->table, keyPtr);
    if (hPtr == NULL) {
	*valuePtrPtr = NULL;
    } else {
	*valuePtrPtr = Tcl_GetHashValue(hPtr);
    }
    return TCL_OK;
................................................................................
{
    Dict *dict;

    if (Tcl_IsShared(dictPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_DictObjRemove");
    }

    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }

    dict = DICT(dictPtr);
    if (DeleteChainEntry(dict, keyPtr)) {
	if (dictPtr->bytes != NULL) {
	    TclInvalidateStringRep(dictPtr);
	}
	dict->epoch++;
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
Tcl_DictObjSize(
    Tcl_Interp *interp,
    Tcl_Obj *dictPtr,
    int *sizePtr)
{
    Dict *dict;

    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }

    dict = DICT(dictPtr);
    *sizePtr = dict->table.numEntries;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
				 * written into when there are no further
				 * values in the dictionary, or a 0
				 * otherwise. */
{
    Dict *dict;
    ChainEntry *cPtr;

    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }

    dict = DICT(dictPtr);
    cPtr = dict->entryChainHead;
    if (cPtr == NULL) {
	searchPtr->epoch = 0;
	*donePtr = 1;
    } else {
	*donePtr = 0;
	searchPtr->dictionaryPtr = (Tcl_Dict) dict;
................................................................................
    }

    dictPtr = TclTraceDictPath(interp, dictPtr, keyc-1,keyv, DICT_PATH_CREATE);
    if (dictPtr == NULL) {
	return TCL_ERROR;
    }

    dict = DICT(dictPtr);

    hPtr = CreateChainEntry(dict, keyv[keyc-1], &isNew);
    Tcl_IncrRefCount(valuePtr);
    if (!isNew) {
	Tcl_Obj *oldValuePtr = Tcl_GetHashValue(hPtr);

	TclDecrRefCount(oldValuePtr);
    }
................................................................................
    }

    dictPtr = TclTraceDictPath(interp, dictPtr, keyc-1,keyv, DICT_PATH_UPDATE);
    if (dictPtr == NULL) {
	return TCL_ERROR;
    }

    dict = DICT(dictPtr);

    DeleteChainEntry(dict, keyv[keyc-1]);
    InvalidateDictChain(dictPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
    TclNewObj(dictPtr);
    TclInvalidateStringRep(dictPtr);
    dict = ckalloc(sizeof(Dict));
    InitChainTable(dict);
    dict->epoch = 1;
    dict->chain = NULL;
    dict->refCount = 1;
    DICT(dictPtr) = dict;
    dictPtr->internalRep.twoPtrValue.ptr2 = NULL;
    dictPtr->typePtr = &tclDictType;
    return dictPtr;
#endif
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    TclDbNewObj(dictPtr, file, line);
    TclInvalidateStringRep(dictPtr);
    dict = ckalloc(sizeof(Dict));
    InitChainTable(dict);
    dict->epoch = 1;
    dict->chain = NULL;
    dict->refCount = 1;
    DICT(dictPtr) = dict;
    dictPtr->internalRep.twoPtrValue.ptr2 = NULL;
    dictPtr->typePtr = &tclDictType;
    return dictPtr;
#else /* !TCL_MEM_DEBUG */
    return Tcl_NewDictObj();
#endif
}
 
/***** START OF FUNCTIONS IMPLEMENTING TCL COMMANDS *****/
................................................................................

    if ((objc < 2) || (objc & 1)) {
	Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key value ...?");
	return TCL_ERROR;
    }

    dictPtr = objv[1];
    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }
    if (Tcl_IsShared(dictPtr)) {
	dictPtr = Tcl_DuplicateObj(dictPtr);
    }
    if (dictPtr->bytes != NULL) {
	TclInvalidateStringRep(dictPtr);
    }
    for (i=2 ; i<objc ; i+=2) {
	Tcl_DictObjPut(NULL, dictPtr, objv[i], objv[i+1]);
    }
    Tcl_SetObjResult(interp, dictPtr);
    return TCL_OK;
}
 
................................................................................

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key ...?");
	return TCL_ERROR;
    }

    dictPtr = objv[1];
    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }
    if (Tcl_IsShared(dictPtr)) {
	dictPtr = Tcl_DuplicateObj(dictPtr);
    }
    if (dictPtr->bytes != NULL) {
	TclInvalidateStringRep(dictPtr);
    }
    for (i=2 ; i<objc ; i++) {
	Tcl_DictObjRemove(NULL, dictPtr, objv[i]);
    }
    Tcl_SetObjResult(interp, dictPtr);
    return TCL_OK;
}
 
................................................................................
    }

    /*
     * Make sure first argument is a dictionary.
     */

    targetObj = objv[1];
    if (targetObj->typePtr != &tclDictType
	    && SetDictFromAny(interp, targetObj) != TCL_OK) {
	return TCL_ERROR;
    }

    if (objc == 2) {
	/*
	 * Single argument, return it.
	 */
................................................................................

    /*
     * A direct check that we have a dictionary. We don't start the iteration
     * yet because that might allocate memory or set locks that we do not
     * need. [Bug 1705778, leak K04]
     */

    if (objv[1]->typePtr != &tclDictType
	    && SetDictFromAny(interp, objv[1]) != TCL_OK) {
	return TCL_ERROR;
    }

    if (objc == 3) {
	pattern = TclGetString(objv[2]);
    }
    listPtr = Tcl_NewListObj(0, NULL);
................................................................................
static int
DictInfoCmd(
    ClientData dummy,
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const *objv)
{
    Tcl_Obj *dictPtr;
    Dict *dict;
    char *statsStr;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "dictionary");
	return TCL_ERROR;
    }

    dictPtr = objv[1];
    if (dictPtr->typePtr != &tclDictType
	    && SetDictFromAny(interp, dictPtr) != TCL_OK) {
	return TCL_ERROR;
    }
    dict = DICT(dictPtr);

    statsStr = Tcl_HashStats(&dict->table);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(statsStr, -1));
    ckfree(statsStr);
    return TCL_OK;
}
 
................................................................................
    }
    if (Tcl_IsShared(dictPtr)) {
	/*
	 * A little internals surgery to avoid copying a string rep that will
	 * soon be no good.
	 */

	char *saved = dictPtr->bytes;
	Tcl_Obj *oldPtr = dictPtr;

	dictPtr->bytes = NULL;
	dictPtr = Tcl_DuplicateObj(dictPtr);
	oldPtr->bytes = saved;
    }
    if (valuePtr == NULL) {
	/*
	 * Key not in dictionary. Create new key with increment as value.
	 */

	if (objc == 4) {
................................................................................
		return TCL_ERROR;
	    }
	}
    }

    if (allocatedValue) {
	Tcl_DictObjPut(NULL, dictPtr, objv[2], valuePtr);
    } else if (dictPtr->bytes != NULL) {
	TclInvalidateStringRep(dictPtr);
    }

    resultPtr = Tcl_ObjSetVar2(interp, objv[1], NULL, dictPtr,
	    TCL_LEAVE_ERR_MSG);
    if (resultPtr == NULL) {
	return TCL_ERROR;






>







 







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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tommath.h"
#include <assert.h>

/*
 * Forward declaration.
 */
struct Dict;

/*
................................................................................
    unsigned int epoch; 	/* Epoch counter */
    size_t refCount;		/* Reference counter (see above) */
    Tcl_Obj *chain;		/* Linked list used for invalidating the
				 * string representations of updated nested
				 * dictionaries. */
} Dict;








/*
 * The structure below defines the dictionary object type by means of
 * functions that can be invoked by generic object code.
 */

const Tcl_ObjType tclDictType = {
    "dict",
    FreeDictInternalRep,		/* freeIntRepProc */
    DupDictInternalRep,			/* dupIntRepProc */
    UpdateStringOfDict,			/* updateStringProc */
    SetDictFromAny			/* setFromAnyProc */
};

#define DictSetIntRep(objPtr, dictRepPtr)				\
    do {                                                                \
        Tcl_ObjIntRep ir;                                               \
        ir.twoPtrValue.ptr1 = (dictRepPtr);                             \
        ir.twoPtrValue.ptr2 = NULL;                                     \
        Tcl_StoreIntRep((objPtr), &tclDictType, &ir);                   \
    } while (0)

#define DictGetIntRep(objPtr, dictRepPtr)				\
    do {                                                                \
        const Tcl_ObjIntRep *irPtr;                                     \
        irPtr = Tcl_FetchIntRep((objPtr), &tclDictType);                \
        (dictRepPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;          \
    } while (0)

/*
 * The type of the specially adapted version of the Tcl_Obj*-containing hash
 * table defined in the tclObj.c code. This version differs in that it
 * allocates a bit more space in each hash entry in order to hold the pointers
 * used to keep the hash entries in a linked list.
 *
................................................................................
 */

static void
DupDictInternalRep(
    Tcl_Obj *srcPtr,
    Tcl_Obj *copyPtr)
{

    Dict *oldDict, *newDict = ckalloc(sizeof(Dict));
    ChainEntry *cPtr;

    DictGetIntRep(srcPtr, oldDict);

    /*
     * Copy values across from the old hash table.
     */

    InitChainTable(newDict);
    for (cPtr=oldDict->entryChainHead ; cPtr!=NULL ; cPtr=cPtr->nextPtr) {
................................................................................
    newDict->chain = NULL;
    newDict->refCount = 1;

    /*
     * Store in the object.
     */

    DictSetIntRep(copyPtr, newDict);


}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeDictInternalRep --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeDictInternalRep(
    Tcl_Obj *dictPtr)
{
    Dict *dict;

    DictGetIntRep(dictPtr, dict);

    if (dict->refCount-- <= 1) {
	DeleteDict(dict);
    }

}
 
/*
 *----------------------------------------------------------------------
 *
 * DeleteDict --
 *
................................................................................

static void
UpdateStringOfDict(
    Tcl_Obj *dictPtr)
{
#define LOCAL_SIZE 64
    char localFlags[LOCAL_SIZE], *flagPtr = NULL;
    Dict *dict;
    ChainEntry *cPtr;
    Tcl_Obj *keyPtr, *valuePtr;
    int i, length, bytesNeeded = 0;
    const char *elem;
    char *dst;

    /*
     * This field is the most useful one in the whole hash structure, and it
     * is not exposed by any API function...
     */

    int numElems;

    DictGetIntRep(dictPtr, dict);

    assert (dict != NULL);

    numElems = dict->table.numEntries * 2;

    /* Handle empty list case first, simplifies what follows */
    if (numElems == 0) {
	Tcl_InitStringRep(dictPtr, NULL, 0);

	return;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

................................................................................
    }
    bytesNeeded += numElems;

    /*
     * Pass 2: copy into string rep buffer.
     */

    dst = Tcl_InitStringRep(dictPtr, NULL, bytesNeeded - 1);
    TclOOM(dst, bytesNeeded);

    for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) {
	flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 );
	keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
	elem = TclGetStringFromObj(keyPtr, &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i]);
	*dst++ = ' ';

	flagPtr[i+1] |= TCL_DONT_QUOTE_HASH;
	valuePtr = Tcl_GetHashValue(&cPtr->entry);
	elem = TclGetStringFromObj(valuePtr, &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i+1]);
	*dst++ = ' ';
    }
    (void)Tcl_InitStringRep(dictPtr, NULL, bytesNeeded - 1);

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }
}
 
/*
................................................................................

    /*
     * Since lists and dictionaries have very closely-related string
     * representations (i.e. the same parsing code) we can safely special-case
     * the conversion from lists to dictionaries.
     */

    if (Tcl_FetchIntRep(objPtr, &tclListType)) {
	int objc, i;
	Tcl_Obj **objv;

	/* Cannot fail, we already know the Tcl_ObjType is "list". */
	TclListObjGetElements(NULL, objPtr, &objc, &objv);
	if (objc & 1) {
	    goto missingValue;
................................................................................
		goto missingValue;
	    }

	    if (literal) {
		TclNewStringObj(keyPtr, elemStart, elemSize);
	    } else {
		/* Avoid double copy */
		char *dst;

		TclNewObj(keyPtr);

		Tcl_InvalidateStringRep(keyPtr);
		dst = Tcl_InitStringRep(keyPtr, NULL, elemSize);
		TclOOM(dst, elemSize); /* Consider error */
		(void)Tcl_InitStringRep(keyPtr, NULL,
			TclCopyAndCollapse(elemSize, elemStart, dst));

	    }

	    if (TclFindDictElement(interp, nextElem, (limit - nextElem),
		    &elemStart, &nextElem, &elemSize, &literal) != TCL_OK) {
		TclDecrRefCount(keyPtr);
		goto errorInFindDictElement;
	    }

	    if (literal) {
		TclNewStringObj(valuePtr, elemStart, elemSize);
	    } else {
		/* Avoid double copy */
		char *dst;

		TclNewObj(valuePtr);

		Tcl_InvalidateStringRep(valuePtr);
		dst = Tcl_InitStringRep(valuePtr, NULL, elemSize);
		TclOOM(dst, elemSize); /* Consider error */
		(void)Tcl_InitStringRep(valuePtr, NULL,
			TclCopyAndCollapse(elemSize, elemStart, dst));

	    }

	    /* Store key and value in the hash table we're building. */
	    hPtr = CreateChainEntry(dict, keyPtr, &isNew);
	    if (!isNew) {
		Tcl_Obj *discardedValue = Tcl_GetHashValue(hPtr);

................................................................................

    /*
     * Free the old internalRep before setting the new one. We do this as late
     * as possible to allow the conversion code, in particular
     * Tcl_GetStringFromObj, to use that old internalRep.
     */


    dict->epoch = 1;
    dict->chain = NULL;
    dict->refCount = 1;
    DictSetIntRep(objPtr, dict);


    return TCL_OK;

  missingValue:
    if (interp != NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"missing value to go with key", -1));
	Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
    }
  errorInFindDictElement:
    DeleteChainTable(dict);
    ckfree(dict);
    return TCL_ERROR;
}

static Dict *
GetDictFromObj(
    Tcl_Interp *interp,
    Tcl_Obj *dictPtr)
{
    Dict *dict;

    DictGetIntRep(dictPtr, dict);
    if (dict == NULL) {
	if (SetDictFromAny(interp, dictPtr) != TCL_OK) {
	    return NULL;
	}
	DictGetIntRep(dictPtr, dict);
    }
    return dict;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclTraceDictPath --
 *
 *	Trace through a tree of dictionaries using the array of keys given. If
................................................................................
    int keyc,
    Tcl_Obj *const keyv[],
    int flags)
{
    Dict *dict, *newDict;
    int i;

    DictGetIntRep(dictPtr, dict);
    if (dict == NULL) {
	if (SetDictFromAny(interp, dictPtr) != TCL_OK) {
	    return NULL;
	}

	DictGetIntRep(dictPtr, dict);
    }
    if (flags & DICT_PATH_UPDATE) {
	dict->chain = NULL;
    }

    for (i=0 ; i<keyc ; i++) {
	Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&dict->table, keyv[i]);
	Tcl_Obj *tmpObj;
................................................................................

	    hPtr = CreateChainEntry(dict, keyv[i], &isNew);
	    tmpObj = Tcl_NewDictObj();
	    Tcl_IncrRefCount(tmpObj);
	    Tcl_SetHashValue(hPtr, tmpObj);
	} else {
	    tmpObj = Tcl_GetHashValue(hPtr);


	    DictGetIntRep(tmpObj, newDict);

	    if (newDict == NULL) {
		if (SetDictFromAny(interp, tmpObj) != TCL_OK) {
		    return NULL;
		}
	    }
	}

	DictGetIntRep(tmpObj, newDict);
	if (flags & DICT_PATH_UPDATE) {
	    if (Tcl_IsShared(tmpObj)) {
		TclDecrRefCount(tmpObj);
		tmpObj = Tcl_DuplicateObj(tmpObj);
		Tcl_IncrRefCount(tmpObj);
		Tcl_SetHashValue(hPtr, tmpObj);
		dict->epoch++;
		DictGetIntRep(tmpObj, newDict);
	    }

	    newDict->chain = dictPtr;
	}
	dict = newDict;
	dictPtr = tmpObj;
    }
................................................................................
 *----------------------------------------------------------------------
 */

static void
InvalidateDictChain(
    Tcl_Obj *dictObj)
{
    Dict *dict;

    DictGetIntRep(dictObj, dict);
    assert( dict != NULL);

    do {
	dict->refCount++;
	TclInvalidateStringRep(dictObj);
	TclFreeIntRep(dictObj);
	DictSetIntRep(dictObj, dict);

	dict->epoch++;
	dictObj = dict->chain;
	if (dictObj == NULL) {
	    break;
	}
	dict->chain = NULL;
	DictGetIntRep(dictObj, dict);
    } while (dict != NULL);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_DictObjPut --
................................................................................
    Tcl_HashEntry *hPtr;
    int isNew;

    if (Tcl_IsShared(dictPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_DictObjPut");
    }

    dict = GetDictFromObj(interp, dictPtr);
    if (dict == NULL) {
	return TCL_ERROR;
    }


    TclInvalidateStringRep(dictPtr);


    hPtr = CreateChainEntry(dict, keyPtr, &isNew);
    dict->refCount++;
    TclFreeIntRep(dictPtr)
    DictSetIntRep(dictPtr, dict);
    Tcl_IncrRefCount(valuePtr);
    if (!isNew) {
	Tcl_Obj *oldValuePtr = Tcl_GetHashValue(hPtr);

	TclDecrRefCount(oldValuePtr);
    }
    Tcl_SetHashValue(hPtr, valuePtr);
................................................................................
    Tcl_Obj *dictPtr,
    Tcl_Obj *keyPtr,
    Tcl_Obj **valuePtrPtr)
{
    Dict *dict;
    Tcl_HashEntry *hPtr;

    dict = GetDictFromObj(interp, dictPtr);
    if (dict == NULL) {
	*valuePtrPtr = NULL;
	return TCL_ERROR;
    }


    hPtr = Tcl_FindHashEntry(&dict->table, keyPtr);
    if (hPtr == NULL) {
	*valuePtrPtr = NULL;
    } else {
	*valuePtrPtr = Tcl_GetHashValue(hPtr);
    }
    return TCL_OK;
................................................................................
{
    Dict *dict;

    if (Tcl_IsShared(dictPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_DictObjRemove");
    }

    dict = GetDictFromObj(interp, dictPtr);
    if (dict == NULL) {
	return TCL_ERROR;
    }


    if (DeleteChainEntry(dict, keyPtr)) {

	TclInvalidateStringRep(dictPtr);

	dict->epoch++;
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
Tcl_DictObjSize(
    Tcl_Interp *interp,
    Tcl_Obj *dictPtr,
    int *sizePtr)
{
    Dict *dict;

    dict = GetDictFromObj(interp, dictPtr);
    if (dict == NULL) {
	return TCL_ERROR;
    }


    *sizePtr = dict->table.numEntries;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
				 * written into when there are no further
				 * values in the dictionary, or a 0
				 * otherwise. */
{
    Dict *dict;
    ChainEntry *cPtr;

    dict = GetDictFromObj(interp, dictPtr);
    if (dict == NULL) {
	return TCL_ERROR;
    }


    cPtr = dict->entryChainHead;
    if (cPtr == NULL) {
	searchPtr->epoch = 0;
	*donePtr = 1;
    } else {
	*donePtr = 0;
	searchPtr->dictionaryPtr = (Tcl_Dict) dict;
................................................................................
    }

    dictPtr = TclTraceDictPath(interp, dictPtr, keyc-1,keyv, DICT_PATH_CREATE);
    if (dictPtr == NULL) {
	return TCL_ERROR;
    }

    DictGetIntRep(dictPtr, dict);
    assert(dict != NULL);
    hPtr = CreateChainEntry(dict, keyv[keyc-1], &isNew);
    Tcl_IncrRefCount(valuePtr);
    if (!isNew) {
	Tcl_Obj *oldValuePtr = Tcl_GetHashValue(hPtr);

	TclDecrRefCount(oldValuePtr);
    }
................................................................................
    }

    dictPtr = TclTraceDictPath(interp, dictPtr, keyc-1,keyv, DICT_PATH_UPDATE);
    if (dictPtr == NULL) {
	return TCL_ERROR;
    }

    DictGetIntRep(dictPtr, dict);
    assert(dict != NULL);
    DeleteChainEntry(dict, keyv[keyc-1]);
    InvalidateDictChain(dictPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
    TclNewObj(dictPtr);
    TclInvalidateStringRep(dictPtr);
    dict = ckalloc(sizeof(Dict));
    InitChainTable(dict);
    dict->epoch = 1;
    dict->chain = NULL;
    dict->refCount = 1;
    DictSetIntRep(dictPtr, dict);


    return dictPtr;
#endif
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    TclDbNewObj(dictPtr, file, line);
    TclInvalidateStringRep(dictPtr);
    dict = ckalloc(sizeof(Dict));
    InitChainTable(dict);
    dict->epoch = 1;
    dict->chain = NULL;
    dict->refCount = 1;
    DictSetIntRep(dictPtr, dict);


    return dictPtr;
#else /* !TCL_MEM_DEBUG */
    return Tcl_NewDictObj();
#endif
}
 
/***** START OF FUNCTIONS IMPLEMENTING TCL COMMANDS *****/
................................................................................

    if ((objc < 2) || (objc & 1)) {
	Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key value ...?");
	return TCL_ERROR;
    }

    dictPtr = objv[1];
    if (GetDictFromObj(interp, dictPtr) == NULL) {

	return TCL_ERROR;
    }
    if (Tcl_IsShared(dictPtr)) {
	dictPtr = Tcl_DuplicateObj(dictPtr);
    }

    TclInvalidateStringRep(dictPtr);

    for (i=2 ; i<objc ; i+=2) {
	Tcl_DictObjPut(NULL, dictPtr, objv[i], objv[i+1]);
    }
    Tcl_SetObjResult(interp, dictPtr);
    return TCL_OK;
}
 
................................................................................

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key ...?");
	return TCL_ERROR;
    }

    dictPtr = objv[1];
    if (GetDictFromObj(interp, dictPtr) == NULL) {

	return TCL_ERROR;
    }
    if (Tcl_IsShared(dictPtr)) {
	dictPtr = Tcl_DuplicateObj(dictPtr);
    }

    TclInvalidateStringRep(dictPtr);

    for (i=2 ; i<objc ; i++) {
	Tcl_DictObjRemove(NULL, dictPtr, objv[i]);
    }
    Tcl_SetObjResult(interp, dictPtr);
    return TCL_OK;
}
 
................................................................................
    }

    /*
     * Make sure first argument is a dictionary.
     */

    targetObj = objv[1];

    if (GetDictFromObj(interp, targetObj) == NULL) {
	return TCL_ERROR;
    }

    if (objc == 2) {
	/*
	 * Single argument, return it.
	 */
................................................................................

    /*
     * A direct check that we have a dictionary. We don't start the iteration
     * yet because that might allocate memory or set locks that we do not
     * need. [Bug 1705778, leak K04]
     */

    if (GetDictFromObj(interp, objv[1]) == NULL) {

	return TCL_ERROR;
    }

    if (objc == 3) {
	pattern = TclGetString(objv[2]);
    }
    listPtr = Tcl_NewListObj(0, NULL);
................................................................................
static int
DictInfoCmd(
    ClientData dummy,
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const *objv)
{

    Dict *dict;
    char *statsStr;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "dictionary");
	return TCL_ERROR;
    }

    dict = GetDictFromObj(interp, objv[1]);
    if (dict == NULL) {

	return TCL_ERROR;
    }


    statsStr = Tcl_HashStats(&dict->table);
    Tcl_SetObjResult(interp, Tcl_NewStringObj(statsStr, -1));
    ckfree(statsStr);
    return TCL_OK;
}
 
................................................................................
    }
    if (Tcl_IsShared(dictPtr)) {
	/*
	 * A little internals surgery to avoid copying a string rep that will
	 * soon be no good.
	 */

	Tcl_Obj *oldPtr = dictPtr;

	TclNewObj(dictPtr);
	TclInvalidateStringRep(dictPtr);
	DupDictInternalRep(oldPtr, dictPtr);

    }
    if (valuePtr == NULL) {
	/*
	 * Key not in dictionary. Create new key with increment as value.
	 */

	if (objc == 4) {
................................................................................
		return TCL_ERROR;
	    }
	}
    }

    if (allocatedValue) {
	Tcl_DictObjPut(NULL, dictPtr, objv[2], valuePtr);
    } else {
	TclInvalidateStringRep(dictPtr);
    }

    resultPtr = Tcl_ObjSetVar2(interp, objv[1], NULL, dictPtr,
	    TCL_LEAVE_ERR_MSG);
    if (resultPtr == NULL) {
	return TCL_ERROR;

Changes to generic/tclDisassemble.c.

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static void		UpdateStringOfInstName(Tcl_Obj *objPtr);

/*
 * The structure below defines an instruction name Tcl object to allow
 * reporting of inner contexts in errorstack without string allocation.
 */

static const Tcl_ObjType tclInstNameType = {
    "instname",			/* name */
    NULL,			/* freeIntRepProc */
    NULL,			/* dupIntRepProc */
    UpdateStringOfInstName,	/* updateStringProc */
    NULL,			/* setFromAnyProc */
};

/*

 * How to get the bytecode out of a Tcl_Obj.
 */





#define BYTECODE(objPtr)					\
    ((ByteCode *) (objPtr)->internalRep.twoPtrValue.ptr1)








 
/*
 *----------------------------------------------------------------------
 *
 * GetLocationInformation --
 *
 *	This procedure looks up the information about where a procedure was
................................................................................
 */

static Tcl_Obj *
DisassembleByteCodeObj(
    Tcl_Interp *interp,
    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
{
    ByteCode *codePtr = BYTECODE(objPtr);
    unsigned char *codeStart, *codeLimit, *pc;
    unsigned char *codeDeltaNext, *codeLengthNext;
    unsigned char *srcDeltaNext, *srcLengthNext;
    int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i, line;
    Interp *iPtr = (Interp *) *codePtr->interpHandle;
    Tcl_Obj *bufferObj, *fileObj;





    TclNewObj(bufferObj);
    if (!codePtr->refCount) {
	return bufferObj;	/* Already freed. */
    }

    codeStart = codePtr->codeStart;
................................................................................

Tcl_Obj *
TclNewInstNameObj(
    unsigned char inst)
{
    Tcl_Obj *objPtr = Tcl_NewObj();

    objPtr->typePtr = &tclInstNameType;
    objPtr->internalRep.wideValue = (long) inst;
    objPtr->bytes = NULL;

    return objPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfInstName(
    Tcl_Obj *objPtr)
{
    size_t len, inst = (size_t)objPtr->internalRep.wideValue;
    char *s, buf[TCL_INTEGER_SPACE + 5];



    if (inst > LAST_INST_OPCODE) {


        sprintf(buf, "inst_%" TCL_Z_MODIFIER "d", inst);
        s = buf;

    } else {
        s = (char *) tclInstructionTable[inst].name;



    }
    len = strlen(s);
    /* assert (len < UINT_MAX) */
    objPtr->bytes = ckalloc(len + 1);
    memcpy(objPtr->bytes, s, len + 1);
    objPtr->length = len;
}
 
/*
 *----------------------------------------------------------------------
 *
 * PrintSourceToObj --
 *
................................................................................

static Tcl_Obj *
DisassembleByteCodeAsDicts(
    Tcl_Interp *interp,		/* Used for looking up the CmdFrame for the
				 * procedure, if one exists. */
    Tcl_Obj *objPtr)		/* The bytecode-holding value to take apart */
{
    ByteCode *codePtr = BYTECODE(objPtr);
    Tcl_Obj *description, *literals, *variables, *instructions, *inst;
    Tcl_Obj *aux, *exn, *commands, *file;
    unsigned char *pc, *opnd, *codeOffPtr, *codeLenPtr, *srcOffPtr, *srcLenPtr;
    int codeOffset, codeLength, sourceOffset, sourceLength;
    int i, val, line;



    /*
     * Get the literals from the bytecode.
     */

    literals = Tcl_NewObj();
    for (i=0 ; i<codePtr->numLitObjects ; i++) {
................................................................................
	DISAS_SCRIPT
    };
    int idx, result;
    Tcl_Obj *codeObjPtr = NULL;
    Proc *procPtr = NULL;
    Tcl_HashEntry *hPtr;
    Object *oPtr;

    Method *methodPtr;

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "type ...");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){
................................................................................
    case DISAS_LAMBDA: {
	Command cmd;
	Tcl_Obj *nsObjPtr;
	Tcl_Namespace *nsPtr;

	/*
	 * Compile (if uncompiled) and disassemble a lambda term.
	 *
	 * WARNING! Pokes inside the lambda objtype.
	 */

	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm");
	    return TCL_ERROR;
	}
	if (objv[2]->typePtr == &tclLambdaType) {
	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
	}

	if (procPtr == NULL || procPtr->iPtr != (Interp *) interp) {
	    result = tclLambdaType.setFromAnyProc(interp, objv[2]);
	    if (result != TCL_OK) {
		return result;
	    }
	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
	}

	memset(&cmd, 0, sizeof(Command));
	nsObjPtr = objv[2]->internalRep.twoPtrValue.ptr2;
	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
	if (result != TCL_OK) {
	    return result;
	}
	cmd.nsPtr = (Namespace *) nsPtr;
	procPtr->cmdPtr = &cmd;
	result = TclPushProcCallFrame(procPtr, interp, objc, objv, 1);
................................................................................
	 * Compile and disassemble a script.
	 */

	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "script");
	    return TCL_ERROR;
	}
	if ((objv[2]->typePtr != &tclByteCodeType)
		&& (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK)) {

	    return TCL_ERROR;
	}
	codeObjPtr = objv[2];
	break;

    case DISAS_CLASS_CONSTRUCTOR:
	if (objc != 3) {
................................................................................
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of method", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", NULL);
	    return TCL_ERROR;
	}
	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

................................................................................
	CLANG_ASSERT(0);
    }

    /*
     * Do the actual disassembly.
     */



    if (BYTECODE(codeObjPtr)->flags & TCL_BYTECODE_PRECOMPILED) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"may not disassemble prebuilt bytecode", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		"BYTECODE", NULL);
	return TCL_ERROR;
    }
    if (clientData) {






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static void		UpdateStringOfInstName(Tcl_Obj *objPtr);

/*
 * The structure below defines an instruction name Tcl object to allow
 * reporting of inner contexts in errorstack without string allocation.
 */

static const Tcl_ObjType instNameType = {
    "instname",			/* name */
    NULL,			/* freeIntRepProc */
    NULL,			/* dupIntRepProc */
    UpdateStringOfInstName,	/* updateStringProc */
    NULL,			/* setFromAnyProc */
};


#define InstNameSetIntRep(objPtr, inst)				\
    do {							\

	Tcl_ObjIntRep ir;					\
	ir.wideValue = (inst);					\
	Tcl_StoreIntRep((objPtr), &instNameType, &ir);		\
    } while (0)



#define InstNameGetIntRep(objPtr, inst)				\
    do {							\
	const Tcl_ObjIntRep *irPtr;				\
	irPtr = Tcl_FetchIntRep((objPtr), &instNameType);	\
	assert(irPtr != NULL);					\
	(inst) = (size_t)irPtr->wideValue;			\
    } while (0)

 
/*
 *----------------------------------------------------------------------
 *
 * GetLocationInformation --
 *
 *	This procedure looks up the information about where a procedure was
................................................................................
 */

static Tcl_Obj *
DisassembleByteCodeObj(
    Tcl_Interp *interp,
    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
{
    ByteCode *codePtr;
    unsigned char *codeStart, *codeLimit, *pc;
    unsigned char *codeDeltaNext, *codeLengthNext;
    unsigned char *srcDeltaNext, *srcLengthNext;
    int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i, line;
    Interp *iPtr;
    Tcl_Obj *bufferObj, *fileObj;

    ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr);

    iPtr = (Interp *) *codePtr->interpHandle;

    TclNewObj(bufferObj);
    if (!codePtr->refCount) {
	return bufferObj;	/* Already freed. */
    }

    codeStart = codePtr->codeStart;
................................................................................

Tcl_Obj *
TclNewInstNameObj(
    unsigned char inst)
{
    Tcl_Obj *objPtr = Tcl_NewObj();

    TclInvalidateStringRep(objPtr);
    InstNameSetIntRep(objPtr, (long) inst);


    return objPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfInstName(
    Tcl_Obj *objPtr)
{
    size_t inst;	/* NOTE: We know this is really an unsigned char */
    char *dst;

    InstNameGetIntRep(objPtr, inst);

    if (inst > LAST_INST_OPCODE) {
	dst = Tcl_InitStringRep(objPtr, NULL, TCL_INTEGER_SPACE + 5);
	TclOOM(dst, TCL_INTEGER_SPACE + 5);
        sprintf(dst, "inst_%" TCL_Z_MODIFIER "d", inst);

	(void) Tcl_InitStringRep(objPtr, NULL, strlen(dst));
    } else {
	const char *s = tclInstructionTable[inst].name;
	unsigned int len = strlen(s);
	dst = Tcl_InitStringRep(objPtr, s, len);
	TclOOM(dst, len);
    }





}
 
/*
 *----------------------------------------------------------------------
 *
 * PrintSourceToObj --
 *
................................................................................

static Tcl_Obj *
DisassembleByteCodeAsDicts(
    Tcl_Interp *interp,		/* Used for looking up the CmdFrame for the
				 * procedure, if one exists. */
    Tcl_Obj *objPtr)		/* The bytecode-holding value to take apart */
{
    ByteCode *codePtr;
    Tcl_Obj *description, *literals, *variables, *instructions, *inst;
    Tcl_Obj *aux, *exn, *commands, *file;
    unsigned char *pc, *opnd, *codeOffPtr, *codeLenPtr, *srcOffPtr, *srcLenPtr;
    int codeOffset, codeLength, sourceOffset, sourceLength;
    int i, val, line;

    ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr);

    /*
     * Get the literals from the bytecode.
     */

    literals = Tcl_NewObj();
    for (i=0 ; i<codePtr->numLitObjects ; i++) {
................................................................................
	DISAS_SCRIPT
    };
    int idx, result;
    Tcl_Obj *codeObjPtr = NULL;
    Proc *procPtr = NULL;
    Tcl_HashEntry *hPtr;
    Object *oPtr;
    ByteCode *codePtr;
    Method *methodPtr;

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "type ...");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){
................................................................................
    case DISAS_LAMBDA: {
	Command cmd;
	Tcl_Obj *nsObjPtr;
	Tcl_Namespace *nsPtr;

	/*
	 * Compile (if uncompiled) and disassemble a lambda term.


	 */

	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm");
	    return TCL_ERROR;
	}



	procPtr = TclGetLambdaFromObj(interp, objv[2], &nsObjPtr);
	if (procPtr == NULL) {


	    return TCL_ERROR;


	}

	memset(&cmd, 0, sizeof(Command));

	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
	if (result != TCL_OK) {
	    return result;
	}
	cmd.nsPtr = (Namespace *) nsPtr;
	procPtr->cmdPtr = &cmd;
	result = TclPushProcCallFrame(procPtr, interp, objc, objv, 1);
................................................................................
	 * Compile and disassemble a script.
	 */

	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "script");
	    return TCL_ERROR;
	}

	if ((NULL == Tcl_FetchIntRep(objv[2], &tclByteCodeType)) && (TCL_OK
		!= TclSetByteCodeFromAny(interp, objv[2], NULL, NULL))) {
	    return TCL_ERROR;
	}
	codeObjPtr = objv[2];
	break;

    case DISAS_CLASS_CONSTRUCTOR:
	if (objc != 3) {
................................................................................
	if (procPtr == NULL) {
	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
		    "body not available for this kind of method", -1));
	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		    "METHODTYPE", NULL);
	    return TCL_ERROR;
	}
	if (NULL == Tcl_FetchIntRep(procPtr->bodyPtr, &tclByteCodeType)) {
	    Command cmd;

	    /*
	     * Yes, this is ugly, but we need to pass the namespace in to the
	     * compiler in two places.
	     */

................................................................................
	CLANG_ASSERT(0);
    }

    /*
     * Do the actual disassembly.
     */

    ByteCodeGetIntRep(codeObjPtr, &tclByteCodeType, codePtr);

    if (codePtr->flags & TCL_BYTECODE_PRECOMPILED) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"may not disassemble prebuilt bytecode", -1));
	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
		"BYTECODE", NULL);
	return TCL_ERROR;
    }
    if (clientData) {

Changes to generic/tclEncoding.c.

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 * of the intrep. This should help the lifetime of encodings be more useful.
 * See concerns raised in [Bug 1077262].
 */

static const Tcl_ObjType encodingType = {
    "encoding", FreeEncodingIntRep, DupEncodingIntRep, NULL, NULL
};















 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetEncodingFromObj --
 *
 *	Writes to (*encodingPtr) the Tcl_Encoding value of (*objPtr), if
................................................................................

int
Tcl_GetEncodingFromObj(
    Tcl_Interp *interp,
    Tcl_Obj *objPtr,
    Tcl_Encoding *encodingPtr)
{

    const char *name = TclGetString(objPtr);

    if (objPtr->typePtr != &encodingType) {


	Tcl_Encoding encoding = Tcl_GetEncoding(interp, name);

	if (encoding == NULL) {
	    return TCL_ERROR;
	}
	TclFreeIntRep(objPtr);
	objPtr->internalRep.twoPtrValue.ptr1 = encoding;
	objPtr->typePtr = &encodingType;
    }
    *encodingPtr = Tcl_GetEncoding(NULL, name);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeEncodingIntRep(
    Tcl_Obj *objPtr)
{



    Tcl_FreeEncoding(objPtr->internalRep.twoPtrValue.ptr1);
    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupEncodingIntRep --
 *
................................................................................
 */

static void
DupEncodingIntRep(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    dupPtr->internalRep.twoPtrValue.ptr1 = Tcl_GetEncoding(NULL, srcPtr->bytes);
    dupPtr->typePtr = &encodingType;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetEncodingSearchPath --
 *






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 * of the intrep. This should help the lifetime of encodings be more useful.
 * See concerns raised in [Bug 1077262].
 */

static const Tcl_ObjType encodingType = {
    "encoding", FreeEncodingIntRep, DupEncodingIntRep, NULL, NULL
};
#define EncodingSetIntRep(objPtr, encoding)				\
    do {								\
	Tcl_ObjIntRep ir;						\
	ir.twoPtrValue.ptr1 = (encoding);				\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), &encodingType, &ir);			\
    } while (0)

#define EncodingGetIntRep(objPtr, encoding)				\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep ((objPtr), &encodingType);		\
	(encoding) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetEncodingFromObj --
 *
 *	Writes to (*encodingPtr) the Tcl_Encoding value of (*objPtr), if
................................................................................

int
Tcl_GetEncodingFromObj(
    Tcl_Interp *interp,
    Tcl_Obj *objPtr,
    Tcl_Encoding *encodingPtr)
{
    Tcl_Encoding encoding;
    const char *name = TclGetString(objPtr);


    EncodingGetIntRep(objPtr, encoding);
    if (encoding == NULL) {
	encoding = Tcl_GetEncoding(interp, name);

	if (encoding == NULL) {
	    return TCL_ERROR;
	}
	EncodingSetIntRep(objPtr, encoding);


    }
    *encodingPtr = Tcl_GetEncoding(NULL, name);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeEncodingIntRep(
    Tcl_Obj *objPtr)
{
    Tcl_Encoding encoding;

    EncodingGetIntRep(objPtr, encoding);
    Tcl_FreeEncoding(encoding);

}
 
/*
 *----------------------------------------------------------------------
 *
 * DupEncodingIntRep --
 *
................................................................................
 */

static void
DupEncodingIntRep(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    Tcl_Encoding encoding = Tcl_GetEncoding(NULL, TclGetString(srcPtr));
    EncodingSetIntRep(dupPtr, encoding);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_GetEncodingSearchPath --
 *

Changes to generic/tclEnsemble.c.

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    "ensembleCommand",		/* the type's name */
    FreeEnsembleCmdRep,		/* freeIntRepProc */
    DupEnsembleCmdRep,		/* dupIntRepProc */
    NULL,			/* updateStringProc */
    NULL			/* setFromAnyProc */
};
















/*
 * The internal rep for caching ensemble subcommand lookups and spelling
 * corrections.
 */

typedef struct {
    unsigned int epoch;         /* Used to confirm when the data in this
................................................................................
    if (ensemblePtr->epoch == ensemblePtr->nsPtr->exportLookupEpoch) {
	/*
	 * Table of subcommands is still valid; therefore there might be a
	 * valid cache of discovered information which we can reuse. Do the
	 * check here, and if we're still valid, we can jump straight to the
	 * part where we do the invocation of the subcommand.
	 */

	if (subObj->typePtr==&ensembleCmdType){
	    EnsembleCmdRep *ensembleCmd = subObj->internalRep.twoPtrValue.ptr1;

	    if (ensembleCmd->epoch == ensemblePtr->epoch &&
		    ensembleCmd->token == (Command *)ensemblePtr->token) {
		prefixObj = Tcl_GetHashValue(ensembleCmd->hPtr);
		Tcl_IncrRefCount(prefixObj);
		if (ensembleCmd->fix) {
		    TclSpellFix(interp, objv, objc, subIdx, subObj, ensembleCmd->fix);
		}
................................................................................
    Tcl_Obj *objPtr,
    EnsembleConfig *ensemblePtr,
    Tcl_HashEntry *hPtr,
    Tcl_Obj *fix)
{
    register EnsembleCmdRep *ensembleCmd;

    if (objPtr->typePtr == &ensembleCmdType) {
	ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;
	TclCleanupCommandMacro(ensembleCmd->token);
	if (ensembleCmd->fix) {
	    Tcl_DecrRefCount(ensembleCmd->fix);
	}
    } else {
	/*
	 * Kill the old internal rep, and replace it with a brand new one of
	 * our own.
	 */

	TclFreeIntRep(objPtr);
	ensembleCmd = ckalloc(sizeof(EnsembleCmdRep));
	objPtr->internalRep.twoPtrValue.ptr1 = ensembleCmd;
	objPtr->typePtr = &ensembleCmdType;

    }

    /*
     * Populate the internal rep.
     */

    ensembleCmd->epoch = ensemblePtr->epoch;
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeEnsembleCmdRep(
    Tcl_Obj *objPtr)
{
    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;


    TclCleanupCommandMacro(ensembleCmd->token);
    if (ensembleCmd->fix) {
	Tcl_DecrRefCount(ensembleCmd->fix);
    }
    ckfree(ensembleCmd);
    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupEnsembleCmdRep --
 *
................................................................................
 */

static void
DupEnsembleCmdRep(
    Tcl_Obj *objPtr,
    Tcl_Obj *copyPtr)
{
    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1;
    EnsembleCmdRep *ensembleCopy = ckalloc(sizeof(EnsembleCmdRep));

    copyPtr->typePtr = &ensembleCmdType;
    copyPtr->internalRep.twoPtrValue.ptr1 = ensembleCopy;

    ensembleCopy->epoch = ensembleCmd->epoch;
    ensembleCopy->token = ensembleCmd->token;
    ensembleCopy->token->refCount++;
    ensembleCopy->fix = ensembleCmd->fix;
    if (ensembleCopy->fix) {
	Tcl_IncrRefCount(ensembleCopy->fix);
    }






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    "ensembleCommand",		/* the type's name */
    FreeEnsembleCmdRep,		/* freeIntRepProc */
    DupEnsembleCmdRep,		/* dupIntRepProc */
    NULL,			/* updateStringProc */
    NULL			/* setFromAnyProc */
};

#define ECRSetIntRep(objPtr, ecRepPtr)					\
    do {								\
	Tcl_ObjIntRep ir;						\
	ir.twoPtrValue.ptr1 = (ecRepPtr);				\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), &ensembleCmdType, &ir);		\
    } while (0)

#define ECRGetIntRep(objPtr, ecRepPtr)					\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &ensembleCmdType);		\
	(ecRepPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

/*
 * The internal rep for caching ensemble subcommand lookups and spelling
 * corrections.
 */

typedef struct {
    unsigned int epoch;         /* Used to confirm when the data in this
................................................................................
    if (ensemblePtr->epoch == ensemblePtr->nsPtr->exportLookupEpoch) {
	/*
	 * Table of subcommands is still valid; therefore there might be a
	 * valid cache of discovered information which we can reuse. Do the
	 * check here, and if we're still valid, we can jump straight to the
	 * part where we do the invocation of the subcommand.
	 */
	EnsembleCmdRep *ensembleCmd;

	ECRGetIntRep(subObj, ensembleCmd);
	if (ensembleCmd) {
	    if (ensembleCmd->epoch == ensemblePtr->epoch &&
		    ensembleCmd->token == (Command *)ensemblePtr->token) {
		prefixObj = Tcl_GetHashValue(ensembleCmd->hPtr);
		Tcl_IncrRefCount(prefixObj);
		if (ensembleCmd->fix) {
		    TclSpellFix(interp, objv, objc, subIdx, subObj, ensembleCmd->fix);
		}
................................................................................
    Tcl_Obj *objPtr,
    EnsembleConfig *ensemblePtr,
    Tcl_HashEntry *hPtr,
    Tcl_Obj *fix)
{
    register EnsembleCmdRep *ensembleCmd;

    ECRGetIntRep(objPtr, ensembleCmd);
    if (ensembleCmd) {
	TclCleanupCommandMacro(ensembleCmd->token);
	if (ensembleCmd->fix) {
	    Tcl_DecrRefCount(ensembleCmd->fix);
	}
    } else {
	/*
	 * Kill the old internal rep, and replace it with a brand new one of
	 * our own.
	 */


	ensembleCmd = ckalloc(sizeof(EnsembleCmdRep));


	ECRSetIntRep(objPtr, ensembleCmd);
    }

    /*
     * Populate the internal rep.
     */

    ensembleCmd->epoch = ensemblePtr->epoch;
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeEnsembleCmdRep(
    Tcl_Obj *objPtr)
{
    EnsembleCmdRep *ensembleCmd;

    ECRGetIntRep(objPtr, ensembleCmd);
    TclCleanupCommandMacro(ensembleCmd->token);
    if (ensembleCmd->fix) {
	Tcl_DecrRefCount(ensembleCmd->fix);
    }
    ckfree(ensembleCmd);

}
 
/*
 *----------------------------------------------------------------------
 *
 * DupEnsembleCmdRep --
 *
................................................................................
 */

static void
DupEnsembleCmdRep(
    Tcl_Obj *objPtr,
    Tcl_Obj *copyPtr)
{
    EnsembleCmdRep *ensembleCmd;
    EnsembleCmdRep *ensembleCopy = ckalloc(sizeof(EnsembleCmdRep));

    ECRGetIntRep(objPtr, ensembleCmd);
    ECRSetIntRep(copyPtr, ensembleCopy);

    ensembleCopy->epoch = ensembleCmd->epoch;
    ensembleCopy->token = ensembleCmd->token;
    ensembleCopy->token->refCount++;
    ensembleCopy->fix = ensembleCmd->fix;
    if (ensembleCopy->fix) {
	Tcl_IncrRefCount(ensembleCopy->fix);
    }

Changes to generic/tclExecute.c.

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static void
ReleaseDictIterator(
    Tcl_Obj *objPtr)
{
    Tcl_DictSearch *searchPtr;
    Tcl_Obj *dictPtr;





    /*
     * First kill the search, and then release the reference to the dictionary
     * that we were holding.
     */

    searchPtr = objPtr->internalRep.twoPtrValue.ptr1;
    Tcl_DictObjDone(searchPtr);
    ckfree(searchPtr);

    dictPtr = objPtr->internalRep.twoPtrValue.ptr2;
    TclDecrRefCount(dictPtr);

    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * InitByteCodeExecution --
 *
................................................................................
				/* Tcl Internal type of bytecode. Initialized
				 * to avoid compiler warning. */

    /*
     * Get the expression ByteCode from the object. If it exists, make sure it
     * is valid in the current context.
     */
    if (objPtr->typePtr == &exprCodeType) {




	Namespace *namespacePtr = iPtr->varFramePtr->nsPtr;

	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
	if (((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != namespacePtr)
		|| (codePtr->nsEpoch != namespacePtr->resolverEpoch)
		|| (codePtr->localCachePtr != iPtr->varFramePtr->localCachePtr)) {
	    TclFreeIntRep(objPtr);

	}
    }
    if (objPtr->typePtr != &exprCodeType) {


	/*
	 * TIP #280: No invoker (yet) - Expression compilation.
	 */

	const char *string = TclGetString(objPtr);

	TclInitCompileEnv(interp, &compEnv, string, objPtr->length, NULL, 0);
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeExprCodeInternalRep(
    Tcl_Obj *objPtr)
{
    ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;



    TclReleaseByteCode(codePtr);
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................

    /*
     * If the object is not already of tclByteCodeType, compile it (and reset
     * the compilation flags in the interpreter; this should be done after any
     * compilation). Otherwise, check that it is "fresh" enough.
     */

    if (objPtr->typePtr == &tclByteCodeType) {

	/*
	 * Make sure the Bytecode hasn't been invalidated by, e.g., someone
	 * redefining a command with a compile procedure (this might make the
	 * compiled code wrong). The object needs to be recompiled if it was
	 * compiled in/for a different interpreter, or for a different
	 * namespace, or for the same namespace but with different name
	 * resolution rules. Precompiled objects, however, are immutable and
................................................................................
	 * originating procPtr is the same as the current context procPtr
	 * (assuming one exists at all - none for global level). This code is
	 * #def'ed out because [info body] was changed to never return a
	 * bytecode type object, which should obviate us from the extra checks
	 * here.
	 */

	codePtr = objPtr->internalRep.twoPtrValue.ptr1;
	if (((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != namespacePtr)
		|| (codePtr->nsEpoch != namespacePtr->resolverEpoch)) {
	    if (!(codePtr->flags & TCL_BYTECODE_PRECOMPILED)) {
		goto recompileObj;
	    }
................................................................................
     * information.
     */

    iPtr->invokeCmdFramePtr = invoker;
    iPtr->invokeWord = word;
    TclSetByteCodeFromAny(interp, objPtr, NULL, NULL);
    iPtr->invokeCmdFramePtr = NULL;
    codePtr = objPtr->internalRep.twoPtrValue.ptr1;
    if (iPtr->varFramePtr->localCachePtr) {
	codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
	codePtr->localCachePtr->refCount++;
    }
    return codePtr;
}
 
................................................................................
	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));

	/*
	 * Extract the desired list element.
	 */

	if ((TclListObjGetElements(interp, valuePtr, &objc, &objv) == TCL_OK)
		&& (value2Ptr->typePtr != &tclListType)
		&& (TclGetIntForIndexM(NULL, value2Ptr, objc-1,
			&index) == TCL_OK)) {
	    TclDecrRefCount(value2Ptr);
	    tosPtr--;
	    pcAdjustment = 1;
	    goto lindexFastPath;
	}
................................................................................
	     */

	    Tcl_DecrRefCount(dictPtr);
	    ckfree(searchPtr);
	    TRACE_ERROR(interp);
	    goto gotError;
	}


	TclNewObj(statePtr);
	statePtr->typePtr = &dictIteratorType;
	statePtr->internalRep.twoPtrValue.ptr1 = searchPtr;
	statePtr->internalRep.twoPtrValue.ptr2 = dictPtr;


	varPtr = LOCAL(opnd);
	if (varPtr->value.objPtr) {
	    if (varPtr->value.objPtr->typePtr == &dictIteratorType) {

		Tcl_Panic("mis-issued dictFirst!");
	    }
	    TclDecrRefCount(varPtr->value.objPtr);
	}
	varPtr->value.objPtr = statePtr;
	Tcl_IncrRefCount(statePtr);
	goto pushDictIteratorResult;

    case INST_DICT_NEXT:
	opnd = TclGetUInt4AtPtr(pc+1);
	TRACE(("%u => ", opnd));
	statePtr = (*LOCAL(opnd)).value.objPtr;
	if (statePtr == NULL || statePtr->typePtr != &dictIteratorType) {

	    Tcl_Panic("mis-issued dictNext!");
	}


	searchPtr = statePtr->internalRep.twoPtrValue.ptr1;
	Tcl_DictObjNext(searchPtr, &keyPtr, &valuePtr, &done);




    pushDictIteratorResult:
	if (done) {
	    TclNewObj(emptyPtr);
	    PUSH_OBJECT(emptyPtr);
	    PUSH_OBJECT(emptyPtr);
	} else {
	    PUSH_OBJECT(valuePtr);
................................................................................
    objBytesIfUnshared = 0.0;
    strBytesIfUnshared = 0.0;
    strBytesSharedMultX = 0.0;
    strBytesSharedOnce = 0.0;
    for (i = 0;  i < globalTablePtr->numBuckets;  i++) {
	for (entryPtr = globalTablePtr->buckets[i];  entryPtr != NULL;
		entryPtr = entryPtr->nextPtr) {
	    if (entryPtr->objPtr->typePtr == &tclByteCodeType) {
		numByteCodeLits++;
	    }
	    (void) TclGetStringFromObj(entryPtr->objPtr, &length);
	    refCountSum += entryPtr->refCount;
	    objBytesIfUnshared += (entryPtr->refCount * sizeof(Tcl_Obj));
	    strBytesIfUnshared += (entryPtr->refCount * (length+1));
	    if (entryPtr->refCount > 1) {






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744
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750
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753
754
755
756
757
758
759
760
761
762
763
764
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766


767
768
769
770
771
772
773
....
1448
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1455
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1461
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....
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....
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....
4764
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....
7108
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7118
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7124
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....
9771
9772
9773
9774
9775
9776
9777
9778
9779
9780
9781
9782
9783
9784
9785
static void
ReleaseDictIterator(
    Tcl_Obj *objPtr)
{
    Tcl_DictSearch *searchPtr;
    Tcl_Obj *dictPtr;
    const Tcl_ObjIntRep *irPtr;

    irPtr = Tcl_FetchIntRep(objPtr, &dictIteratorType);
    assert(irPtr != NULL);

    /*
     * First kill the search, and then release the reference to the dictionary
     * that we were holding.
     */

    searchPtr = irPtr->twoPtrValue.ptr1;
    Tcl_DictObjDone(searchPtr);
    ckfree(searchPtr);

    dictPtr = irPtr->twoPtrValue.ptr2;
    TclDecrRefCount(dictPtr);


}
 
/*
 *----------------------------------------------------------------------
 *
 * InitByteCodeExecution --
 *
................................................................................
				/* Tcl Internal type of bytecode. Initialized
				 * to avoid compiler warning. */

    /*
     * Get the expression ByteCode from the object. If it exists, make sure it
     * is valid in the current context.
     */


    ByteCodeGetIntRep(objPtr, &exprCodeType, codePtr);
    
    if (codePtr != NULL) {
	Namespace *namespacePtr = iPtr->varFramePtr->nsPtr;


	if (((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != namespacePtr)
		|| (codePtr->nsEpoch != namespacePtr->resolverEpoch)
		|| (codePtr->localCachePtr != iPtr->varFramePtr->localCachePtr)) {
	    Tcl_StoreIntRep(objPtr, &exprCodeType, NULL);
	    codePtr = NULL;
	}
    }


    if (codePtr == NULL) {
	/*
	 * TIP #280: No invoker (yet) - Expression compilation.
	 */

	const char *string = TclGetString(objPtr);

	TclInitCompileEnv(interp, &compEnv, string, objPtr->length, NULL, 0);
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeExprCodeInternalRep(
    Tcl_Obj *objPtr)
{
    ByteCode *codePtr;
    ByteCodeGetIntRep(objPtr, &exprCodeType, codePtr);
    assert(codePtr != NULL);

    TclReleaseByteCode(codePtr);
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................

    /*
     * If the object is not already of tclByteCodeType, compile it (and reset
     * the compilation flags in the interpreter; this should be done after any
     * compilation). Otherwise, check that it is "fresh" enough.
     */

    ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr);
    if (codePtr != NULL) {
	/*
	 * Make sure the Bytecode hasn't been invalidated by, e.g., someone
	 * redefining a command with a compile procedure (this might make the
	 * compiled code wrong). The object needs to be recompiled if it was
	 * compiled in/for a different interpreter, or for a different
	 * namespace, or for the same namespace but with different name
	 * resolution rules. Precompiled objects, however, are immutable and
................................................................................
	 * originating procPtr is the same as the current context procPtr
	 * (assuming one exists at all - none for global level). This code is
	 * #def'ed out because [info body] was changed to never return a
	 * bytecode type object, which should obviate us from the extra checks
	 * here.
	 */


	if (((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != namespacePtr)
		|| (codePtr->nsEpoch != namespacePtr->resolverEpoch)) {
	    if (!(codePtr->flags & TCL_BYTECODE_PRECOMPILED)) {
		goto recompileObj;
	    }
................................................................................
     * information.
     */

    iPtr->invokeCmdFramePtr = invoker;
    iPtr->invokeWord = word;
    TclSetByteCodeFromAny(interp, objPtr, NULL, NULL);
    iPtr->invokeCmdFramePtr = NULL;
    ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr);
    if (iPtr->varFramePtr->localCachePtr) {
	codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr;
	codePtr->localCachePtr->refCount++;
    }
    return codePtr;
}
 
................................................................................
	TRACE(("\"%.30s\" \"%.30s\" => ", O2S(valuePtr), O2S(value2Ptr)));

	/*
	 * Extract the desired list element.
	 */

	if ((TclListObjGetElements(interp, valuePtr, &objc, &objv) == TCL_OK)
		&& (NULL == Tcl_FetchIntRep(value2Ptr, &tclListType))
		&& (TclGetIntForIndexM(NULL, value2Ptr, objc-1,
			&index) == TCL_OK)) {
	    TclDecrRefCount(value2Ptr);
	    tosPtr--;
	    pcAdjustment = 1;
	    goto lindexFastPath;
	}
................................................................................
	     */

	    Tcl_DecrRefCount(dictPtr);
	    ckfree(searchPtr);
	    TRACE_ERROR(interp);
	    goto gotError;
	}
	{
	    Tcl_ObjIntRep ir;
	    TclNewObj(statePtr);

	    ir.twoPtrValue.ptr1 = searchPtr;
	    ir.twoPtrValue.ptr2 = dictPtr;
	    Tcl_StoreIntRep(statePtr, &dictIteratorType, &ir);
	}
	varPtr = LOCAL(opnd);
	if (varPtr->value.objPtr) {

	    if (Tcl_FetchIntRep(varPtr->value.objPtr, &dictIteratorType)) {
		Tcl_Panic("mis-issued dictFirst!");
	    }
	    TclDecrRefCount(varPtr->value.objPtr);
	}
	varPtr->value.objPtr = statePtr;
	Tcl_IncrRefCount(statePtr);
	goto pushDictIteratorResult;

    case INST_DICT_NEXT:
	opnd = TclGetUInt4AtPtr(pc+1);
	TRACE(("%u => ", opnd));
	statePtr = (*LOCAL(opnd)).value.objPtr;

	{
	    const Tcl_ObjIntRep *irPtr;

	    if (statePtr &&
		    (irPtr = Tcl_FetchIntRep(statePtr, &dictIteratorType))) {
		searchPtr = irPtr->twoPtrValue.ptr1;
		Tcl_DictObjNext(searchPtr, &keyPtr, &valuePtr, &done);
	    } else {
		Tcl_Panic("mis-issued dictNext!");
	    }
	}
    pushDictIteratorResult:
	if (done) {
	    TclNewObj(emptyPtr);
	    PUSH_OBJECT(emptyPtr);
	    PUSH_OBJECT(emptyPtr);
	} else {
	    PUSH_OBJECT(valuePtr);
................................................................................
    objBytesIfUnshared = 0.0;
    strBytesIfUnshared = 0.0;
    strBytesSharedMultX = 0.0;
    strBytesSharedOnce = 0.0;
    for (i = 0;  i < globalTablePtr->numBuckets;  i++) {
	for (entryPtr = globalTablePtr->buckets[i];  entryPtr != NULL;
		entryPtr = entryPtr->nextPtr) {
	    if (NULL != Tcl_FetchIntRep(entryPtr->objPtr, &tclByteCodeType)) {
		numByteCodeLits++;
	    }
	    (void) TclGetStringFromObj(entryPtr->objPtr, &length);
	    refCountSum += entryPtr->refCount;
	    objBytesIfUnshared += (entryPtr->refCount * sizeof(Tcl_Obj));
	    strBytesIfUnshared += (entryPtr->refCount * (length+1));
	    if (entryPtr->refCount > 1) {

Changes to generic/tclIO.c.

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339
340
341
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343
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345
....
1511
1512
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1519
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1525
1526
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....
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.....
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.....
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11231
11232
11233
11234
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11237
static const Tcl_ObjType chanObjType = {
    "channel",			/* name for this type */
    FreeChannelIntRep,		/* freeIntRepProc */
    DupChannelIntRep,		/* dupIntRepProc */
    NULL,			/* updateStringProc */
    NULL			/* setFromAnyProc */
};

















#define BUSY_STATE(st, fl) \
     ((((st)->csPtrR) && ((fl) & TCL_READABLE)) || \
      (((st)->csPtrW) && ((fl) & TCL_WRITABLE)))

#define MAX_CHANNEL_BUFFER_SIZE (1024*1024)
 
................................................................................
    ResolvedChanName *resPtr = NULL;
    Tcl_Channel chan;

    if (interp == NULL) {
	return TCL_ERROR;
    }

    if (objPtr->typePtr == &chanObjType) {

	/*
 	 * Confirm validity of saved lookup results.
 	 */

	resPtr = (ResolvedChanName *) objPtr->internalRep.twoPtrValue.ptr1;
	statePtr = resPtr->statePtr;
	if ((resPtr->interp == interp)		/* Same interp context */
			/* No epoch change in channel since lookup */
		&& (resPtr->epoch == statePtr->epoch)) {
	    /*
             * Have a valid saved lookup. Jump to end to return it.
             */
................................................................................
	}
    }

    chan = Tcl_GetChannel(interp, TclGetString(objPtr), NULL);

    if (chan == NULL) {
	if (resPtr) {
	    FreeChannelIntRep(objPtr);
	}
	return TCL_ERROR;
    }

    if (resPtr && resPtr->refCount == 1) {
	/*
         * Re-use the ResolvedCmdName struct.
         */

	Tcl_Release((ClientData) resPtr->statePtr);

    } else {
	TclFreeIntRep(objPtr);

	resPtr = (ResolvedChanName *) ckalloc(sizeof(ResolvedChanName));
	resPtr->refCount = 1;
	objPtr->internalRep.twoPtrValue.ptr1 = (ClientData) resPtr;
	objPtr->typePtr = &chanObjType;

    }
    statePtr = ((Channel *)chan)->state;
    resPtr->statePtr = statePtr;
    Tcl_Preserve((ClientData) statePtr);
    resPtr->interp = interp;
    resPtr->epoch = statePtr->epoch;

................................................................................
static void
DupChannelIntRep(
    register Tcl_Obj *srcPtr,	/* Object with internal rep to copy. Must have
				 * an internal rep of type "Channel". */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. Must not
				 * currently have an internal rep.*/
{
    ResolvedChanName *resPtr = srcPtr->internalRep.twoPtrValue.ptr1;

    resPtr->refCount++;
    copyPtr->internalRep.twoPtrValue.ptr1 = resPtr;
    copyPtr->typePtr = srcPtr->typePtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeChannelIntRep --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeChannelIntRep(
    Tcl_Obj *objPtr)		/* Object with internal rep to free. */
{
    ResolvedChanName *resPtr = objPtr->internalRep.twoPtrValue.ptr1;

    objPtr->typePtr = NULL;

    if (resPtr->refCount-- > 1) {
	return;
    }
    Tcl_Release(resPtr->statePtr);
    ckfree(resPtr);
}
 






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359
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361
....
1527
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1532
1533
1534
1535
1536
1537
1538
1539

1540
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....
1549
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1566

1567


1568
1569


1570
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.....
11206
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static const Tcl_ObjType chanObjType = {
    "channel",			/* name for this type */
    FreeChannelIntRep,		/* freeIntRepProc */
    DupChannelIntRep,		/* dupIntRepProc */
    NULL,			/* updateStringProc */
    NULL			/* setFromAnyProc */
};

#define ChanSetIntRep(objPtr, resPtr)					\
    do {								\
	Tcl_ObjIntRep ir;						\
	(resPtr)->refCount++;						\
	ir.twoPtrValue.ptr1 = (resPtr);					\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), &chanObjType, &ir);			\
    } while (0)

#define ChanGetIntRep(objPtr, resPtr)					\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &chanObjType);		\
	(resPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

#define BUSY_STATE(st, fl) \
     ((((st)->csPtrR) && ((fl) & TCL_READABLE)) || \
      (((st)->csPtrW) && ((fl) & TCL_WRITABLE)))

#define MAX_CHANNEL_BUFFER_SIZE (1024*1024)
 
................................................................................
    ResolvedChanName *resPtr = NULL;
    Tcl_Channel chan;

    if (interp == NULL) {
	return TCL_ERROR;
    }

    ChanGetIntRep(objPtr, resPtr);
    if (resPtr) {
	/*
 	 * Confirm validity of saved lookup results.
 	 */


	statePtr = resPtr->statePtr;
	if ((resPtr->interp == interp)		/* Same interp context */
			/* No epoch change in channel since lookup */
		&& (resPtr->epoch == statePtr->epoch)) {
	    /*
             * Have a valid saved lookup. Jump to end to return it.
             */
................................................................................
	}
    }

    chan = Tcl_GetChannel(interp, TclGetString(objPtr), NULL);

    if (chan == NULL) {
	if (resPtr) {
	    Tcl_StoreIntRep(objPtr, &chanObjType, NULL);
	}
	return TCL_ERROR;
    }

    if (resPtr && resPtr->refCount == 1) {
	/*
         * Re-use the ResolvedCmdName struct.
         */

	Tcl_Release((ClientData) resPtr->statePtr);

    } else {


	resPtr = (ResolvedChanName *) ckalloc(sizeof(ResolvedChanName));
	resPtr->refCount = 0;


	ChanSetIntRep(objPtr, resPtr);		/* Overwrites, if needed */
    }
    statePtr = ((Channel *)chan)->state;
    resPtr->statePtr = statePtr;
    Tcl_Preserve((ClientData) statePtr);
    resPtr->interp = interp;
    resPtr->epoch = statePtr->epoch;

................................................................................
static void
DupChannelIntRep(
    register Tcl_Obj *srcPtr,	/* Object with internal rep to copy. Must have
				 * an internal rep of type "Channel". */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. Must not
				 * currently have an internal rep.*/
{
    ResolvedChanName *resPtr;

    ChanGetIntRep(srcPtr, resPtr);
    assert(resPtr);
    ChanSetIntRep(copyPtr, resPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeChannelIntRep --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeChannelIntRep(
    Tcl_Obj *objPtr)		/* Object with internal rep to free. */
{
    ResolvedChanName *resPtr;

    ChanGetIntRep(objPtr, resPtr);
    assert(resPtr);
    if (resPtr->refCount-- > 1) {
	return;
    }
    Tcl_Release(resPtr->statePtr);
    ckfree(resPtr);
}
 

Changes to generic/tclIndexObj.c.

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112
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115
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125
126
127
128
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136

137
138
139
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141
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143
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269
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283

284
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286
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344
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346

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352
353
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442
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477
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957
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966
967
968
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970
....
1003
1004
1005
1006
1007
1008
1009

1010
1011

1012
1013
1014
1015
1016
1017
1018
1019
				 * value of objPtr; last entry must be NULL
				 * and there must not be duplicate entries. */
    const char *msg,		/* Identifying word to use in error
				 * messages. */
    int flags,			/* 0 or TCL_EXACT */
    int *indexPtr)		/* Place to store resulting integer index. */
{


    /*
     * See if there is a valid cached result from a previous lookup (doing the
     * check here saves the overhead of calling Tcl_GetIndexFromObjStruct in
     * the common case where the result is cached).
     */

    if (!(flags & INDEX_TEMP_TABLE) && objPtr->typePtr == &indexType) {


	IndexRep *indexRep = objPtr->internalRep.twoPtrValue.ptr1;

	/*
	 * Here's hoping we don't get hit by unfortunate packing constraints
	 * on odd platforms like a Cray PVP...
	 */

	if (indexRep->tablePtr == (void *) tablePtr
		&& indexRep->offset == sizeof(char *)) {
	    *indexPtr = indexRep->index;
	    return TCL_OK;
	}

    }
    return Tcl_GetIndexFromObjStruct(interp, objPtr, tablePtr, sizeof(char *),
	    msg, flags, indexPtr);
}
#endif /* TCL_NO_DEPRECATED */
 
/*
................................................................................
{
    int index, idx, numAbbrev;
    const char *key, *p1;
    const char *p2;
    const char *const *entryPtr;
    Tcl_Obj *resultPtr;
    IndexRep *indexRep;


    /* Protect against invalid values, like -1 or 0. */
    if (offset < (int)sizeof(char *)) {
	offset = (int)sizeof(char *);
    }
    /*
     * See if there is a valid cached result from a previous lookup.
     */

    if (!(flags & INDEX_TEMP_TABLE) && objPtr->typePtr == &indexType) {


	indexRep = objPtr->internalRep.twoPtrValue.ptr1;
	if (indexRep->tablePtr==tablePtr && indexRep->offset==offset) {
	    *indexPtr = indexRep->index;
	    return TCL_OK;
	}

    }

    /*
     * Lookup the value of the object in the table. Accept unique
     * abbreviations unless TCL_EXACT is set in flags.
     */

................................................................................
    /*
     * Cache the found representation. Note that we want to avoid allocating a
     * new internal-rep if at all possible since that is potentially a slow
     * operation.
     */

    if (!(flags & INDEX_TEMP_TABLE)) {
	if (objPtr->typePtr == &indexType) {

	    indexRep = objPtr->internalRep.twoPtrValue.ptr1;
	} else {
	    TclFreeIntRep(objPtr);


	    indexRep = ckalloc(sizeof(IndexRep));
	    objPtr->internalRep.twoPtrValue.ptr1 = indexRep;
	    objPtr->typePtr = &indexType;

	}
	indexRep->tablePtr = (void *) tablePtr;
	indexRep->offset = offset;
	indexRep->index = index;
    }

    *indexPtr = index;
    return TCL_OK;

  error:
    if (interp != NULL) {
................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfIndex(
    Tcl_Obj *objPtr)
{
    IndexRep *indexRep = objPtr->internalRep.twoPtrValue.ptr1;
    register char *buf;
    register unsigned len;
    register const char *indexStr = EXPAND_OF(indexRep);

    len = strlen(indexStr);
    buf = ckalloc(len + 1);
    memcpy(buf, indexStr, len+1);
    objPtr->bytes = buf;
    objPtr->length = len;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupIndex --
 *
................................................................................
 */

static void
DupIndex(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    IndexRep *srcIndexRep = srcPtr->internalRep.twoPtrValue.ptr1;
    IndexRep *dupIndexRep = ckalloc(sizeof(IndexRep));


    memcpy(dupIndexRep, srcIndexRep, sizeof(IndexRep));

    dupPtr->internalRep.twoPtrValue.ptr1 = dupIndexRep;
    dupPtr->typePtr = &indexType;

}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeIndex --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeIndex(
    Tcl_Obj *objPtr)
{
    ckfree(objPtr->internalRep.twoPtrValue.ptr1);
    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclInitPrefixCmd --
................................................................................
	 * We assume no object is of index type.
	 */

	for (i=0 ; i<toPrint ; i++) {
	    /*
	     * Add the element, quoting it if necessary.
	     */


	    if (origObjv[i]->typePtr == &indexType) {

		register IndexRep *indexRep =
			origObjv[i]->internalRep.twoPtrValue.ptr1;

		elementStr = EXPAND_OF(indexRep);
		elemLen = strlen(elementStr);
	    } else {
		elementStr = TclGetStringFromObj(origObjv[i], &elemLen);
	    }
	    flags = 0;
................................................................................
  addNormalArgumentsToMessage:
    for (i = 0; i < objc; i++) {
	/*
	 * If the object is an index type use the index table which allows for
	 * the correct error message even if the subcommand was abbreviated.
	 * Otherwise, just use the string rep.
	 */


	if (objv[i]->typePtr == &indexType) {

	    register IndexRep *indexRep = objv[i]->internalRep.twoPtrValue.ptr1;

	    Tcl_AppendStringsToObj(objPtr, EXPAND_OF(indexRep), NULL);
	} else {
	    /*
	     * Quote the argument if it contains spaces (Bug 942757).
	     */







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				 * value of objPtr; last entry must be NULL
				 * and there must not be duplicate entries. */
    const char *msg,		/* Identifying word to use in error
				 * messages. */
    int flags,			/* 0 or TCL_EXACT */
    int *indexPtr)		/* Place to store resulting integer index. */
{
    if (!(flags & INDEX_TEMP_TABLE)) {

    /*
     * See if there is a valid cached result from a previous lookup (doing the
     * check here saves the overhead of calling Tcl_GetIndexFromObjStruct in
     * the common case where the result is cached).
     */

    const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objPtr, &indexType);

    if (irPtr) {
	IndexRep *indexRep = irPtr->twoPtrValue.ptr1;

	/*
	 * Here's hoping we don't get hit by unfortunate packing constraints
	 * on odd platforms like a Cray PVP...
	 */

	if (indexRep->tablePtr == (void *) tablePtr
		&& indexRep->offset == sizeof(char *)) {
	    *indexPtr = indexRep->index;
	    return TCL_OK;
	}
    }
    }
    return Tcl_GetIndexFromObjStruct(interp, objPtr, tablePtr, sizeof(char *),
	    msg, flags, indexPtr);
}
#endif /* TCL_NO_DEPRECATED */
 
/*
................................................................................
{
    int index, idx, numAbbrev;
    const char *key, *p1;
    const char *p2;
    const char *const *entryPtr;
    Tcl_Obj *resultPtr;
    IndexRep *indexRep;
    const Tcl_ObjIntRep *irPtr;

    /* Protect against invalid values, like -1 or 0. */
    if (offset < (int)sizeof(char *)) {
	offset = (int)sizeof(char *);
    }
    /*
     * See if there is a valid cached result from a previous lookup.
     */

    if (!(flags & INDEX_TEMP_TABLE)) {
    irPtr = Tcl_FetchIntRep(objPtr, &indexType);
    if (irPtr) {
	indexRep = irPtr->twoPtrValue.ptr1;
	if (indexRep->tablePtr==tablePtr && indexRep->offset==offset) {
	    *indexPtr = indexRep->index;
	    return TCL_OK;
	}
    }
    }

    /*
     * Lookup the value of the object in the table. Accept unique
     * abbreviations unless TCL_EXACT is set in flags.
     */

................................................................................
    /*
     * Cache the found representation. Note that we want to avoid allocating a
     * new internal-rep if at all possible since that is potentially a slow
     * operation.
     */

    if (!(flags & INDEX_TEMP_TABLE)) {
    irPtr = Tcl_FetchIntRep(objPtr, &indexType);
    if (irPtr) {
	indexRep = irPtr->twoPtrValue.ptr1;
    } else {

	Tcl_ObjIntRep ir;

	indexRep = ckalloc(sizeof(IndexRep));
	ir.twoPtrValue.ptr1 = indexRep;

	Tcl_StoreIntRep(objPtr, &indexType, &ir);
    }
    indexRep->tablePtr = (void *) tablePtr;
    indexRep->offset = offset;
    indexRep->index = index;
    }

    *indexPtr = index;
    return TCL_OK;

  error:
    if (interp != NULL) {
................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfIndex(
    Tcl_Obj *objPtr)
{
    IndexRep *indexRep = Tcl_FetchIntRep(objPtr, &indexType)->twoPtrValue.ptr1;


    register const char *indexStr = EXPAND_OF(indexRep);

    Tcl_InitStringRep(objPtr, indexStr, strlen(indexStr));




}
 
/*
 *----------------------------------------------------------------------
 *
 * DupIndex --
 *
................................................................................
 */

static void
DupIndex(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    Tcl_ObjIntRep ir;
    IndexRep *dupIndexRep = ckalloc(sizeof(IndexRep));

    memcpy(dupIndexRep, Tcl_FetchIntRep(srcPtr, &indexType)->twoPtrValue.ptr1,
	    sizeof(IndexRep));

    ir.twoPtrValue.ptr1 = dupIndexRep;

    Tcl_StoreIntRep(dupPtr, &indexType, &ir);
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeIndex --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeIndex(
    Tcl_Obj *objPtr)
{
    ckfree(Tcl_FetchIntRep(objPtr, &indexType)->twoPtrValue.ptr1);
    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclInitPrefixCmd --
................................................................................
	 * We assume no object is of index type.
	 */

	for (i=0 ; i<toPrint ; i++) {
	    /*
	     * Add the element, quoting it if necessary.
	     */
	    const Tcl_ObjIntRep *irPtr;


	    if ((irPtr = Tcl_FetchIntRep(origObjv[i], &indexType))) {
		register IndexRep *indexRep = irPtr->twoPtrValue.ptr1;


		elementStr = EXPAND_OF(indexRep);
		elemLen = strlen(elementStr);
	    } else {
		elementStr = TclGetStringFromObj(origObjv[i], &elemLen);
	    }
	    flags = 0;
................................................................................
  addNormalArgumentsToMessage:
    for (i = 0; i < objc; i++) {
	/*
	 * If the object is an index type use the index table which allows for
	 * the correct error message even if the subcommand was abbreviated.
	 * Otherwise, just use the string rep.
	 */
	const Tcl_ObjIntRep *irPtr;


	if ((irPtr = Tcl_FetchIntRep(objv[i], &indexType))) {
	    register IndexRep *indexRep = irPtr->twoPtrValue.ptr1;

	    Tcl_AppendStringsToObj(objPtr, EXPAND_OF(indexRep), NULL);
	} else {
	    /*
	     * Quote the argument if it contains spaces (Bug 942757).
	     */

Changes to generic/tclInt.h.

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 * This macro is only used by tclCompile.c in the core (Bug 926445). It
 * however not be made file static, as extensions that touch bytecodes
 * (notably tbcload) require it.
 */

#define TCL_ALIGN(x) (((int)(x) + 7) & ~7)








/*
 * The following enum values are used to specify the runtime platform setting
 * of the tclPlatform variable.
 */

typedef enum {
    TCL_PLATFORM_UNIX = 0,	/* Any Unix-like OS. */
................................................................................
/*
 * Macro used to get the elements of a list object.
 */

#define ListRepPtr(listPtr) \
    ((List *) (listPtr)->internalRep.twoPtrValue.ptr1)

#define ListSetIntRep(objPtr, listRepPtr) \
    (objPtr)->internalRep.twoPtrValue.ptr1 = (void *)(listRepPtr), \
    (objPtr)->internalRep.twoPtrValue.ptr2 = NULL, \
    (listRepPtr)->refCount++, \
    (objPtr)->typePtr = &tclListType

#define ListObjGetElements(listPtr, objc, objv) \
    ((objv) = &(ListRepPtr(listPtr)->elements), \
     (objc) = ListRepPtr(listPtr)->elemCount)

#define ListObjLength(listPtr, len) \
    ((len) = ListRepPtr(listPtr)->elemCount)

................................................................................
 */

MODULE_SCOPE const Tcl_ObjType tclBignumType;
MODULE_SCOPE const Tcl_ObjType tclBooleanType;
MODULE_SCOPE const Tcl_ObjType tclByteArrayType;
MODULE_SCOPE const Tcl_ObjType tclByteCodeType;
MODULE_SCOPE const Tcl_ObjType tclDoubleType;
MODULE_SCOPE const Tcl_ObjType tclEndOffsetType;
MODULE_SCOPE const Tcl_ObjType tclIntType;
MODULE_SCOPE const Tcl_ObjType tclListType;
MODULE_SCOPE const Tcl_ObjType tclDictType;
MODULE_SCOPE const Tcl_ObjType tclProcBodyType;
MODULE_SCOPE const Tcl_ObjType tclStringType;
MODULE_SCOPE const Tcl_ObjType tclEnsembleCmdType;
MODULE_SCOPE const Tcl_ObjType tclRegexpType;
................................................................................
MODULE_SCOPE Tcl_Obj *	TclGetBgErrorHandler(Tcl_Interp *interp);
MODULE_SCOPE int	TclGetChannelFromObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr, Tcl_Channel *chanPtr,
			    int *modePtr, int flags);
MODULE_SCOPE CmdFrame *	TclGetCmdFrameForProcedure(Proc *procPtr);
MODULE_SCOPE int	TclGetCompletionCodeFromObj(Tcl_Interp *interp,
			    Tcl_Obj *value, int *code);


MODULE_SCOPE int	TclGetNumberFromObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr, ClientData *clientDataPtr,
			    int *typePtr);
MODULE_SCOPE int	TclGetOpenModeEx(Tcl_Interp *interp,
			    const char *modeString, int *seekFlagPtr,
			    int *binaryPtr);
MODULE_SCOPE Tcl_Obj *	TclGetProcessGlobalValue(ProcessGlobalValue *pgvPtr);
................................................................................

#define TclInitStringRep(objPtr, bytePtr, len) \
    if ((len) == 0) { \
	(objPtr)->bytes	 = &tclEmptyString; \
	(objPtr)->length = 0; \
    } else { \
	(objPtr)->bytes = (char *) ckalloc((unsigned) ((len) + 1)); \
	memcpy((objPtr)->bytes, (bytePtr), (unsigned) (len)); \
	(objPtr)->bytes[len] = '\0'; \
	(objPtr)->length = (len); \
    }

/*
 *----------------------------------------------------------------
 * Macro used by the Tcl core to get the string representation's byte array
................................................................................
    if ((objPtr)->bytes != NULL) { \
	if ((objPtr)->bytes != &tclEmptyString) { \
	    ckfree((objPtr)->bytes); \
	} \
	(objPtr)->bytes = NULL; \
    }













/*
 *----------------------------------------------------------------
 * Macros used by the Tcl core to grow Tcl_Token arrays. They use the same
 * growth algorithm as used in tclStringObj.c for growing strings. The ANSI C
 * "prototype" for this macro is:
 *
 * MODULE_SCOPE void	TclGrowTokenArray(Tcl_Token *tokenPtr, int used,
................................................................................
 * MODULE_SCOPE void	TclSetIntObj(Tcl_Obj *objPtr, Tcl_WideInt w);
 * MODULE_SCOPE void	TclSetDoubleObj(Tcl_Obj *objPtr, double d);
 *----------------------------------------------------------------
 */

#define TclSetIntObj(objPtr, i) \
    do {						\
	TclInvalidateStringRep(objPtr);			\
	TclFreeIntRep(objPtr);				\
	(objPtr)->internalRep.wideValue = (Tcl_WideInt)(i);	\
	(objPtr)->typePtr = &tclIntType;		\
    } while (0)

#define TclSetDoubleObj(objPtr, d) \
    do {							\
	TclInvalidateStringRep(objPtr);				\
	TclFreeIntRep(objPtr);					\
	(objPtr)->internalRep.doubleValue = (double)(d);	\
	(objPtr)->typePtr = &tclDoubleType;			\
    } while (0)

/*
 *----------------------------------------------------------------
 * Macros used by the Tcl core to create and initialise objects of standard
 * types, avoiding the corresponding function calls in time critical parts of
 * the core. The ANSI C "prototypes" for these macros are:






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 * This macro is only used by tclCompile.c in the core (Bug 926445). It
 * however not be made file static, as extensions that touch bytecodes
 * (notably tbcload) require it.
 */

#define TCL_ALIGN(x) (((int)(x) + 7) & ~7)

/*
 * A common panic alert when memory allocation fails.
 */

#define TclOOM(ptr, size) \
	((size) && ((ptr)||(Tcl_Panic("unable to alloc %u bytes", (size)),1)))

/*
 * The following enum values are used to specify the runtime platform setting
 * of the tclPlatform variable.
 */

typedef enum {
    TCL_PLATFORM_UNIX = 0,	/* Any Unix-like OS. */
................................................................................
/*
 * Macro used to get the elements of a list object.
 */

#define ListRepPtr(listPtr) \
    ((List *) (listPtr)->internalRep.twoPtrValue.ptr1)







#define ListObjGetElements(listPtr, objc, objv) \
    ((objv) = &(ListRepPtr(listPtr)->elements), \
     (objc) = ListRepPtr(listPtr)->elemCount)

#define ListObjLength(listPtr, len) \
    ((len) = ListRepPtr(listPtr)->elemCount)

................................................................................
 */

MODULE_SCOPE const Tcl_ObjType tclBignumType;
MODULE_SCOPE const Tcl_ObjType tclBooleanType;
MODULE_SCOPE const Tcl_ObjType tclByteArrayType;
MODULE_SCOPE const Tcl_ObjType tclByteCodeType;
MODULE_SCOPE const Tcl_ObjType tclDoubleType;

MODULE_SCOPE const Tcl_ObjType tclIntType;
MODULE_SCOPE const Tcl_ObjType tclListType;
MODULE_SCOPE const Tcl_ObjType tclDictType;
MODULE_SCOPE const Tcl_ObjType tclProcBodyType;
MODULE_SCOPE const Tcl_ObjType tclStringType;
MODULE_SCOPE const Tcl_ObjType tclEnsembleCmdType;
MODULE_SCOPE const Tcl_ObjType tclRegexpType;
................................................................................
MODULE_SCOPE Tcl_Obj *	TclGetBgErrorHandler(Tcl_Interp *interp);
MODULE_SCOPE int	TclGetChannelFromObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr, Tcl_Channel *chanPtr,
			    int *modePtr, int flags);
MODULE_SCOPE CmdFrame *	TclGetCmdFrameForProcedure(Proc *procPtr);
MODULE_SCOPE int	TclGetCompletionCodeFromObj(Tcl_Interp *interp,
			    Tcl_Obj *value, int *code);
MODULE_SCOPE Proc *	TclGetLambdaFromObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr, Tcl_Obj **nsObjPtrPtr);
MODULE_SCOPE int	TclGetNumberFromObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr, ClientData *clientDataPtr,
			    int *typePtr);
MODULE_SCOPE int	TclGetOpenModeEx(Tcl_Interp *interp,
			    const char *modeString, int *seekFlagPtr,
			    int *binaryPtr);
MODULE_SCOPE Tcl_Obj *	TclGetProcessGlobalValue(ProcessGlobalValue *pgvPtr);
................................................................................

#define TclInitStringRep(objPtr, bytePtr, len) \
    if ((len) == 0) { \
	(objPtr)->bytes	 = &tclEmptyString; \
	(objPtr)->length = 0; \
    } else { \
	(objPtr)->bytes = (char *) ckalloc((unsigned) ((len) + 1)); \
	memcpy((objPtr)->bytes, (bytePtr) ? (bytePtr) : &tclEmptyString, (unsigned) (len)); \
	(objPtr)->bytes[len] = '\0'; \
	(objPtr)->length = (len); \
    }

/*
 *----------------------------------------------------------------
 * Macro used by the Tcl core to get the string representation's byte array
................................................................................
    if ((objPtr)->bytes != NULL) { \
	if ((objPtr)->bytes != &tclEmptyString) { \
	    ckfree((objPtr)->bytes); \
	} \
	(objPtr)->bytes = NULL; \
    }

/*
 *----------------------------------------------------------------
 * Macro used by the Tcl core to test whether an object has a
 * string representation (or is a 'pure' internal value).
 * The ANSI C "prototype" for this macro is:
 *
 * MODULE_SCOPE int	TclHasStringRep(Tcl_Obj *objPtr);
 *----------------------------------------------------------------
 */

#define TclHasStringRep(objPtr) ((objPtr)->bytes != NULL)

/*
 *----------------------------------------------------------------
 * Macros used by the Tcl core to grow Tcl_Token arrays. They use the same
 * growth algorithm as used in tclStringObj.c for growing strings. The ANSI C
 * "prototype" for this macro is:
 *
 * MODULE_SCOPE void	TclGrowTokenArray(Tcl_Token *tokenPtr, int used,
................................................................................
 * MODULE_SCOPE void	TclSetIntObj(Tcl_Obj *objPtr, Tcl_WideInt w);
 * MODULE_SCOPE void	TclSetDoubleObj(Tcl_Obj *objPtr, double d);
 *----------------------------------------------------------------
 */

#define TclSetIntObj(objPtr, i) \
    do {						\
	Tcl_ObjIntRep ir;				\
	ir.wideValue = (Tcl_WideInt) i;			\
	TclInvalidateStringRep(objPtr);			\
	Tcl_StoreIntRep(objPtr, &tclIntType, &ir);	\
    } while (0)

#define TclSetDoubleObj(objPtr, d) \
    do {						\
	Tcl_ObjIntRep ir;				\
	ir.doubleValue = (double) d;			\
	TclInvalidateStringRep(objPtr);			\
	Tcl_StoreIntRep(objPtr, &tclDoubleType, &ir);	\
    } while (0)

/*
 *----------------------------------------------------------------
 * Macros used by the Tcl core to create and initialise objects of standard
 * types, avoiding the corresponding function calls in time critical parts of
 * the core. The ANSI C "prototypes" for these macros are:

Changes to generic/tclInterp.c.

1822
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     */

    prefc = aliasPtr->objc;
    prefv = &aliasPtr->objPtr;
    cmdc = prefc + objc - 1;

    listPtr = Tcl_NewListObj(cmdc, NULL);
    listRep = listPtr->internalRep.twoPtrValue.ptr1;
    listRep->elemCount = cmdc;
    cmdv = &listRep->elements;

    prefv = &aliasPtr->objPtr;
    memcpy(cmdv, prefv, (size_t) (prefc * sizeof(Tcl_Obj *)));
    memcpy(cmdv+prefc, objv+1, (size_t) ((objc-1) * sizeof(Tcl_Obj *)));







|







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     */

    prefc = aliasPtr->objc;
    prefv = &aliasPtr->objPtr;
    cmdc = prefc + objc - 1;

    listPtr = Tcl_NewListObj(cmdc, NULL);
    listRep = ListRepPtr(listPtr);
    listRep->elemCount = cmdc;
    cmdv = &listRep->elements;

    prefv = &aliasPtr->objPtr;
    memcpy(cmdv, prefv, (size_t) (prefc * sizeof(Tcl_Obj *)));
    memcpy(cmdv+prefc, objv+1, (size_t) ((objc-1) * sizeof(Tcl_Obj *)));

Changes to generic/tclLink.c.

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	}
	LinkedVar(Tcl_WideInt) = linkPtr->lastValue.w;
	break;

    case TCL_LINK_DOUBLE:
	if (Tcl_GetDoubleFromObj(NULL, valueObj, &linkPtr->lastValue.d) != TCL_OK) {
#ifdef ACCEPT_NAN
	    if (valueObj->typePtr != &tclDoubleType) {

#endif
		if (GetInvalidDoubleFromObj(valueObj, &linkPtr->lastValue.d) != TCL_OK) {
		    Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
			TCL_GLOBAL_ONLY);
		    return (char *) "variable must have real value";
		}
#ifdef ACCEPT_NAN
	    }
	    linkPtr->lastValue.d = valueObj->internalRep.doubleValue;
#endif
	}
	LinkedVar(double) = linkPtr->lastValue.d;
	break;

    case TCL_LINK_BOOLEAN:
	if (Tcl_GetBooleanFromObj(NULL, valueObj, &linkPtr->lastValue.i) != TCL_OK) {






|
>








|







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	}
	LinkedVar(Tcl_WideInt) = linkPtr->lastValue.w;
	break;

    case TCL_LINK_DOUBLE:
	if (Tcl_GetDoubleFromObj(NULL, valueObj, &linkPtr->lastValue.d) != TCL_OK) {
#ifdef ACCEPT_NAN
	    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(valueObj, &tclDoubleType);
	    if (irPtr == NULL) {
#endif
		if (GetInvalidDoubleFromObj(valueObj, &linkPtr->lastValue.d) != TCL_OK) {
		    Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
			TCL_GLOBAL_ONLY);
		    return (char *) "variable must have real value";
		}
#ifdef ACCEPT_NAN
	    }
	    linkPtr->lastValue.d = irPtr->doubleValue;
#endif
	}
	LinkedVar(double) = linkPtr->lastValue.d;
	break;

    case TCL_LINK_BOOLEAN:
	if (Tcl_GetBooleanFromObj(NULL, valueObj, &linkPtr->lastValue.i) != TCL_OK) {

Changes to generic/tclListObj.c.

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 * Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"


/*
 * Prototypes for functions defined later in this file:
 */

static List *		AttemptNewList(Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
................................................................................
    "list",			/* name */
    FreeListInternalRep,	/* freeIntRepProc */
    DupListInternalRep,		/* dupIntRepProc */
    UpdateStringOfList,		/* updateStringProc */
    SetListFromAny		/* setFromAnyProc */
};






















#ifndef TCL_MIN_ELEMENT_GROWTH
#define TCL_MIN_ELEMENT_GROWTH TCL_MIN_GROWTH/sizeof(Tcl_Obj *)
#endif
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
     * object an empty string rep and a NULL type.
     */

    if (objc > 0) {
	listRepPtr = NewListIntRep(objc, objv, 1);
	ListSetIntRep(objPtr, listRepPtr);
    } else {
	objPtr->bytes = &tclEmptyString;
	objPtr->length = 0;
    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclListObjCopy --
................................................................................
Tcl_Obj *
TclListObjCopy(
    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    Tcl_Obj *listPtr)		/* List object for which an element array is
				 * to be returned. */
{
    Tcl_Obj *copyPtr;


    if (listPtr->typePtr != &tclListType) {


	if (SetListFromAny(interp, listPtr) != TCL_OK) {
	    return NULL;
	}
    }

    TclNewObj(copyPtr);
    TclInvalidateStringRep(copyPtr);
................................................................................
    int *objcPtr,		/* Where to store the count of objects
				 * referenced by objv. */
    Tcl_Obj ***objvPtr)		/* Where to store the pointer to an array of
				 * pointers to the list's objects. */
{
    register List *listRepPtr;

    if (listPtr->typePtr != &tclListType) {


	int result;

	if (listPtr->bytes == &tclEmptyString) {


	    *objcPtr = 0;
	    *objvPtr = NULL;
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}

    }
    listRepPtr = ListRepPtr(listPtr);
    *objcPtr = listRepPtr->elemCount;
    *objvPtr = &listRepPtr->elements;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
{
    register List *listRepPtr, *newPtr = NULL;
    int numElems, numRequired, needGrow, isShared, attempt;

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_ListObjAppendElement");
    }
    if (listPtr->typePtr != &tclListType) {
	int result;

	if (listPtr->bytes == &tclEmptyString) {



	    Tcl_SetListObj(listPtr, 1, &objPtr);
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}

    }

    listRepPtr = ListRepPtr(listPtr);
    numElems = listRepPtr->elemCount;
    numRequired = numElems + 1 ;
    needGrow = (numRequired > listRepPtr->maxElemCount);
    isShared = (listRepPtr->refCount > 1);

    if (numRequired > LIST_MAX) {
	if (interp != NULL) {
................................................................................
	     */

	    memcpy(dst, src, (size_t) numElems * sizeof(Tcl_Obj *));
	    ckfree(listRepPtr);
	}
	listRepPtr = newPtr;
    }
    listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr;





    /*
     * Add objPtr to the end of listPtr's array of element pointers. Increment
     * the ref count for the (now shared) objPtr.
     */

    *(&listRepPtr->elements + listRepPtr->elemCount) = objPtr;
................................................................................
    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    register Tcl_Obj *listPtr,	/* List object to index into. */
    register int index,		/* Index of element to return. */
    Tcl_Obj **objPtrPtr)	/* The resulting Tcl_Obj* is stored here. */
{
    register List *listRepPtr;

    if (listPtr->typePtr != &tclListType) {

	int result;

	if (listPtr->bytes == &tclEmptyString) {


	    *objPtrPtr = NULL;
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}

    }

    listRepPtr = ListRepPtr(listPtr);
    if ((index < 0) || (index >= listRepPtr->elemCount)) {
	*objPtrPtr = NULL;
    } else {
	*objPtrPtr = (&listRepPtr->elements)[index];
    }

    return TCL_OK;
................................................................................
Tcl_ListObjLength(
    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    register Tcl_Obj *listPtr,	/* List object whose #elements to return. */
    register int *intPtr)	/* The resulting int is stored here. */
{
    register List *listRepPtr;

    if (listPtr->typePtr != &tclListType) {

	int result;

	if (listPtr->bytes == &tclEmptyString) {


	    *intPtr = 0;
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}

    }

    listRepPtr = ListRepPtr(listPtr);
    *intPtr = listRepPtr->elemCount;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    List *listRepPtr;
    register Tcl_Obj **elemPtrs;
    int needGrow, numElems, numRequired, numAfterLast, start, i, j, isShared;

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_ListObjReplace");
    }
    if (listPtr->typePtr != &tclListType) {

	if (listPtr->bytes == &tclEmptyString) {
	    if (!objc) {





		return TCL_OK;
	    }
	    Tcl_SetListObj(listPtr, objc, NULL);
	} else {
	    int result = SetListFromAny(interp, listPtr);

	    if (result != TCL_OK) {
		return result;
	    }
	}

    }

    /*
     * Note that when count == 0 and objc == 0, this routine is logically a
     * no-op, removing and adding no elements to the list. However, by flowing
     * through this routine anyway, we get the important side effect that the
     * resulting listPtr is a list in canoncial form. This is important.
     * Resist any temptation to optimize this case.
     */

    listRepPtr = ListRepPtr(listPtr);
    elemPtrs = &listRepPtr->elements;
    numElems = listRepPtr->elemCount;

    if (first < 0) {
	first = 0;
    }
    if (first >= numElems) {
................................................................................
	}
	if (newPtr == NULL) {
	    attempt = numRequired;
	    newPtr = attemptckrealloc(listRepPtr, LIST_SIZE(attempt));
	}
	if (newPtr) {
	    listRepPtr = newPtr;
	    listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr;
	    elemPtrs = &listRepPtr->elements;
	    listRepPtr->maxElemCount = attempt;
	    needGrow = numRequired > listRepPtr->maxElemCount;
	}
    }
    if (!needGrow && !isShared) {
	int shift;
................................................................................
#endif
		    }
		    return TCL_ERROR;
		}
	    }
	}

	listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr;
	listRepPtr->refCount++;

	elemPtrs = &listRepPtr->elements;

	if (isShared) {
	    /*
	     * The old struct will remain in place; need new refCounts for the
................................................................................
    /*
     * Update the count of elements.
     */

    listRepPtr->elemCount = numRequired;

    /*
     * Invalidate and free any old string representation since it no longer
     * reflects the list's internal representation.
     */






    TclInvalidateStringRep(listPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
    Tcl_Interp *interp,		/* Tcl interpreter. */
    Tcl_Obj *listPtr,		/* List being unpacked. */
    Tcl_Obj *argPtr)		/* Index or index list. */
{

    int index;			/* Index into the list. */
    Tcl_Obj *indexListCopy;


    /*
     * Determine whether argPtr designates a list or a single index. We have
     * to be careful about the order of the checks to avoid repeated
     * shimmering; see TIP#22 and TIP#33 for the details.
     */

    if (argPtr->typePtr != &tclListType

	    && TclGetIntForIndexM(NULL , argPtr, 0, &index) == TCL_OK) {
	/*
	 * argPtr designates a single index.
	 */

	return TclLindexFlat(interp, listPtr, 1, &argPtr);
    }
................................................................................
	 * argPtr designates something that is neither an index nor a
	 * well-formed list. Report the error via TclLindexFlat.
	 */

	return TclLindexFlat(interp, listPtr, 1, &argPtr);
    }


    {
	int indexCount = -1;		/* Size of the array of list indices. */
	Tcl_Obj **indices = NULL; 	/* Array of list indices. */

	TclListObjGetElements(NULL, indexListCopy, &indexCount, &indices);
	listPtr = TclLindexFlat(interp, listPtr, indexCount, indices);
    }

    Tcl_DecrRefCount(indexListCopy);
    return listPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    Tcl_Obj *valuePtr)		/* Value arg to 'lset'. */
{
    int indexCount = 0;		/* Number of indices in the index list. */
    Tcl_Obj **indices = NULL;	/* Vector of indices in the index list. */
    Tcl_Obj *retValuePtr;	/* Pointer to the list to be returned. */
    int index;			/* Current index in the list - discarded. */
    Tcl_Obj *indexListCopy;


    /*
     * Determine whether the index arg designates a list or a single index.
     * We have to be careful about the order of the checks to avoid repeated
     * shimmering; see TIP #22 and #23 for details.
     */

    if (indexArgPtr->typePtr != &tclListType

	    && TclGetIntForIndexM(NULL, indexArgPtr, 0, &index) == TCL_OK) {
	/*
	 * indexArgPtr designates a single index.
	 */

	return TclLsetFlat(interp, listPtr, 1, &indexArgPtr, valuePtr);

................................................................................
    int indexCount,		/* Number of index args. */
    Tcl_Obj *const indexArray[],
				/* Index args. */
    Tcl_Obj *valuePtr)		/* Value arg to 'lset'. */
{
    int index, result, len;
    Tcl_Obj *subListPtr, *retValuePtr, *chainPtr;


    /*
     * If there are no indices, simply return the new value.  (Without
     * indices, [lset] is a synonym for [set].
     */

    if (indexCount == 0) {
................................................................................
	     * variable.  Later on, when we set valuePtr in its proper place,
	     * then all containing lists will have their values changed, and
	     * will need their string reps spoiled.  We maintain a list of all
	     * those Tcl_Obj's (via a little intrep surgery) so we can spoil
	     * them at that time.
	     */


	    parentList->internalRep.twoPtrValue.ptr2 = chainPtr;
	    chainPtr = parentList;
	}
    } while (indexCount > 0);

    /*
     * Either we've detected and error condition, and exited the loop with
     * result == TCL_ERROR, or we've successfully reached the last index, and
     * we're ready to store valuePtr.  In either case, we need to clean up our
     * string spoiling list of Tcl_Obj's.
     */

    while (chainPtr) {
	Tcl_Obj *objPtr = chainPtr;

	if (result == TCL_OK) {
	    /*
	     * We're going to store valuePtr, so spoil string reps of all
	     * containing lists.
	     */

	    TclInvalidateStringRep(objPtr);
	}


	/*
	 * Clear away our intrep surgery mess.
	 */



	chainPtr = objPtr->internalRep.twoPtrValue.ptr2;















	objPtr->internalRep.twoPtrValue.ptr2 = NULL;

    }

    if (result != TCL_OK) {
	/*
	 * Error return; message is already in interp. Clean up any excess
	 * memory.
	 */
................................................................................

    len = -1;
    TclListObjLength(NULL, subListPtr, &len);
    if (index == len) {
	Tcl_ListObjAppendElement(NULL, subListPtr, valuePtr);
    } else {
	TclListObjSetElement(NULL, subListPtr, index, valuePtr);
    }
    TclInvalidateStringRep(subListPtr);

    Tcl_IncrRefCount(retValuePtr);
    return retValuePtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    /*
     * Ensure that the listPtr parameter designates an unshared list.
     */

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "TclListObjSetElement");
    }
    if (listPtr->typePtr != &tclListType) {
	int result;

	if (listPtr->bytes == &tclEmptyString) {



	    if (interp != NULL) {
		Tcl_SetObjResult(interp,
			Tcl_NewStringObj("list index out of range", -1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSET",
			"BADINDEX", NULL);
	    }
	    return TCL_ERROR;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}

    }

    listRepPtr = ListRepPtr(listPtr);
    elemCount = listRepPtr->elemCount;

    /*
     * Ensure that the index is in bounds.
     */

    if (index<0 || index>=elemCount) {
................................................................................
	while (elemCount--) {
	    *dst = *src++;
	    Tcl_IncrRefCount(*dst++);
	}

	listRepPtr->refCount--;

	listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr = newPtr;

    }
    elemPtrs = &listRepPtr->elements;

    /*
     * Add a reference to the new list element.
     */

................................................................................

    /*
     * Stash the new object in the list.
     */

    elemPtrs[index] = valuePtr;













    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeListInternalRep --
................................................................................
 *	Deallocate the storage associated with a list object's internal
 *	representation.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Frees listPtr's List* internal representation and sets listPtr's
 *	internalRep.twoPtrValue.ptr1 to NULL. Decrements the ref counts of all
 *	element objects, which may free them.
 *
 *----------------------------------------------------------------------
 */

static void
FreeListInternalRep(
    Tcl_Obj *listPtr)		/* List object with internal rep to free. */
{
    List *listRepPtr = ListRepPtr(listPtr);




    if (listRepPtr->refCount-- <= 1) {
	Tcl_Obj **elemPtrs = &listRepPtr->elements;
	int i, numElems = listRepPtr->elemCount;

	for (i = 0;  i < numElems;  i++) {
	    Tcl_DecrRefCount(elemPtrs[i]);
	}
	ckfree(listRepPtr);
    }

    listPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupListInternalRep --
 *
................................................................................
 */

static void
DupListInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    List *listRepPtr = ListRepPtr(srcPtr);



    ListSetIntRep(copyPtr, listRepPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetListFromAny --
................................................................................
     * Dictionaries are a special case; they have a string representation such
     * that *all* valid dictionaries are valid lists. Hence we can convert
     * more directly. Only do this when there's no existing string rep; if
     * there is, it is the string rep that's authoritative (because it could
     * describe duplicate keys).
     */

    if (objPtr->typePtr == &tclDictType && !objPtr->bytes) {
	Tcl_Obj *keyPtr, *valuePtr;
	Tcl_DictSearch search;
	int done, size;

	/*
	 * Create the new list representation. Note that we do not need to do
	 * anything with the string representation as the transformation (and
................................................................................

	/*
	 * Each iteration, parse and store a list element.
	 */

	while (nextElem < limit) {
	    const char *elemStart;

	    int elemSize, literal;

	    if (TCL_OK != TclFindElement(interp, nextElem, limit - nextElem,
		    &elemStart, &nextElem, &elemSize, &literal)) {

		while (--elemPtrs >= &listRepPtr->elements) {
		    Tcl_DecrRefCount(*elemPtrs);
		}
		ckfree(listRepPtr);
		return TCL_ERROR;
	    }
	    if (elemStart == limit) {
		break;
	    }

	    /* TODO: replace panic with error on alloc failure? */
	    if (literal) {
		TclNewStringObj(*elemPtrs, elemStart, elemSize);
	    } else {
		TclNewObj(*elemPtrs);
		(*elemPtrs)->bytes = ckalloc((unsigned) elemSize + 1);
		(*elemPtrs)->length = TclCopyAndCollapse(elemSize, elemStart,
			(*elemPtrs)->bytes);







	    }

	    Tcl_IncrRefCount(*elemPtrs++);/* Since list now holds ref to it. */
	}

 	listRepPtr->elemCount = elemPtrs - &listRepPtr->elements;
    }

    /*
     * Free the old internalRep before setting the new one. We do this as late
     * as possible to allow the conversion code, in particular
     * Tcl_GetStringFromObj, to use that old internalRep.
     */

    TclFreeIntRep(objPtr);
    ListSetIntRep(objPtr, listRepPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................

static void
UpdateStringOfList(
    Tcl_Obj *listPtr)		/* List object with string rep to update. */
{
#   define LOCAL_SIZE 64
    char localFlags[LOCAL_SIZE], *flagPtr = NULL;
    List *listRepPtr = ListRepPtr(listPtr);
    int numElems = listRepPtr->elemCount;
    int i, length, bytesNeeded = 0;
    const char *elem;
    char *dst;
    Tcl_Obj **elemPtrs;








    /*
     * Mark the list as being canonical; although it will now have a string
     * rep, it is one we derived through proper "canonical" quoting and so
     * it's known to be free from nasties relating to [concat] and [eval].
     */

................................................................................
    listRepPtr->canonicalFlag = 1;

    /*
     * Handle empty list case first, so rest of the routine is simpler.
     */

    if (numElems == 0) {
	listPtr->bytes = &tclEmptyString;
	listPtr->length = 0;
	return;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

................................................................................
	if (bytesNeeded < 0) {
	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
	}
    }
    if (bytesNeeded > INT_MAX - numElems + 1) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }
    bytesNeeded += numElems;

    /*
     * Pass 2: copy into string rep buffer.
     */

    listPtr->length = bytesNeeded - 1;
    listPtr->bytes = ckalloc(bytesNeeded);
    dst = listPtr->bytes;
    for (i = 0; i < numElems; i++) {
	flagPtr[i] |= (i ? TCL_DONT_QUOTE_HASH : 0);
	elem = TclGetStringFromObj(elemPtrs[i], &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i]);
	*dst++ = ' ';
    }
    listPtr->bytes[listPtr->length] = '\0';

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }
}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */






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 * Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include <assert.h>

/*
 * Prototypes for functions defined later in this file:
 */

static List *		AttemptNewList(Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
................................................................................
    "list",			/* name */
    FreeListInternalRep,	/* freeIntRepProc */
    DupListInternalRep,		/* dupIntRepProc */
    UpdateStringOfList,		/* updateStringProc */
    SetListFromAny		/* setFromAnyProc */
};

/* Macros to manipulate the List internal rep */

#define ListSetIntRep(objPtr, listRepPtr)				\
    do {								\
	Tcl_ObjIntRep ir;						\
	ir.twoPtrValue.ptr1 = (listRepPtr);				\
	ir.twoPtrValue.ptr2 = NULL;					\
	(listRepPtr)->refCount++;					\
	Tcl_StoreIntRep((objPtr), &tclListType, &ir);			\
    } while (0)

#define ListGetIntRep(objPtr, listRepPtr)				\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &tclListType);		\
	(listRepPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

#define ListResetIntRep(objPtr, listRepPtr) \
    Tcl_FetchIntRep((objPtr), &tclListType)->twoPtrValue.ptr1 = (listRepPtr)

#ifndef TCL_MIN_ELEMENT_GROWTH
#define TCL_MIN_ELEMENT_GROWTH TCL_MIN_GROWTH/sizeof(Tcl_Obj *)
#endif
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
     * object an empty string rep and a NULL type.
     */

    if (objc > 0) {
	listRepPtr = NewListIntRep(objc, objv, 1);
	ListSetIntRep(objPtr, listRepPtr);
    } else {
	Tcl_InitStringRep(objPtr, NULL, 0);

    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclListObjCopy --
................................................................................
Tcl_Obj *
TclListObjCopy(
    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    Tcl_Obj *listPtr)		/* List object for which an element array is
				 * to be returned. */
{
    Tcl_Obj *copyPtr;
    List *listRepPtr;


    ListGetIntRep(listPtr, listRepPtr);
    if (NULL == listRepPtr) {
	if (SetListFromAny(interp, listPtr) != TCL_OK) {
	    return NULL;
	}
    }

    TclNewObj(copyPtr);
    TclInvalidateStringRep(copyPtr);
................................................................................
    int *objcPtr,		/* Where to store the count of objects
				 * referenced by objv. */
    Tcl_Obj ***objvPtr)		/* Where to store the pointer to an array of
				 * pointers to the list's objects. */
{
    register List *listRepPtr;

    ListGetIntRep(listPtr, listRepPtr);

    if (listRepPtr == NULL) {
	int result, length;


	(void) Tcl_GetStringFromObj(listPtr, &length);
	if (length == 0) {
	    *objcPtr = 0;
	    *objvPtr = NULL;
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
	ListGetIntRep(listPtr, listRepPtr);
    }

    *objcPtr = listRepPtr->elemCount;
    *objvPtr = &listRepPtr->elements;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
{
    register List *listRepPtr, *newPtr = NULL;
    int numElems, numRequired, needGrow, isShared, attempt;

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_ListObjAppendElement");
    }

    ListGetIntRep(listPtr, listRepPtr);
    if (listRepPtr == NULL) {
	int result, length;

	(void) Tcl_GetStringFromObj(listPtr, &length);
	if (length == 0) {
	    Tcl_SetListObj(listPtr, 1, &objPtr);
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
	ListGetIntRep(listPtr, listRepPtr);
    }


    numElems = listRepPtr->elemCount;
    numRequired = numElems + 1 ;
    needGrow = (numRequired > listRepPtr->maxElemCount);
    isShared = (listRepPtr->refCount > 1);

    if (numRequired > LIST_MAX) {
	if (interp != NULL) {
................................................................................
	     */

	    memcpy(dst, src, (size_t) numElems * sizeof(Tcl_Obj *));
	    ckfree(listRepPtr);
	}
	listRepPtr = newPtr;
    }
    ListResetIntRep(listPtr, listRepPtr);
    listRepPtr->refCount++;
    TclFreeIntRep(listPtr);
    ListSetIntRep(listPtr, listRepPtr);
    listRepPtr->refCount--;

    /*
     * Add objPtr to the end of listPtr's array of element pointers. Increment
     * the ref count for the (now shared) objPtr.
     */

    *(&listRepPtr->elements + listRepPtr->elemCount) = objPtr;
................................................................................
    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    register Tcl_Obj *listPtr,	/* List object to index into. */
    register int index,		/* Index of element to return. */
    Tcl_Obj **objPtrPtr)	/* The resulting Tcl_Obj* is stored here. */
{
    register List *listRepPtr;

    ListGetIntRep(listPtr, listRepPtr);
    if (listRepPtr == NULL) {
	int result, length;


	(void) Tcl_GetStringFromObj(listPtr, &length);
	if (length == 0) {
	    *objPtrPtr = NULL;
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
	ListGetIntRep(listPtr, listRepPtr);
    }


    if ((index < 0) || (index >= listRepPtr->elemCount)) {
	*objPtrPtr = NULL;
    } else {
	*objPtrPtr = (&listRepPtr->elements)[index];
    }

    return TCL_OK;
................................................................................
Tcl_ListObjLength(
    Tcl_Interp *interp,		/* Used to report errors if not NULL. */
    register Tcl_Obj *listPtr,	/* List object whose #elements to return. */
    register int *intPtr)	/* The resulting int is stored here. */
{
    register List *listRepPtr;

    ListGetIntRep(listPtr, listRepPtr);
    if (listRepPtr == NULL) {
	int result, length;


	(void) Tcl_GetStringFromObj(listPtr, &length);
	if (length == 0) {
	    *intPtr = 0;
	    return TCL_OK;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
	ListGetIntRep(listPtr, listRepPtr);
    }


    *intPtr = listRepPtr->elemCount;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    List *listRepPtr;
    register Tcl_Obj **elemPtrs;
    int needGrow, numElems, numRequired, numAfterLast, start, i, j, isShared;

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "Tcl_ListObjReplace");
    }


    ListGetIntRep(listPtr, listRepPtr);
    if (listRepPtr == NULL) {
	int length;

	(void) Tcl_GetStringFromObj(listPtr, &length);
	if (length == 0) {
	    if (objc == 0) {
		return TCL_OK;
	    }
	    Tcl_SetListObj(listPtr, objc, NULL);
	} else {
	    int result = SetListFromAny(interp, listPtr);

	    if (result != TCL_OK) {
		return result;
	    }
	}
	ListGetIntRep(listPtr, listRepPtr);
    }

    /*
     * Note that when count == 0 and objc == 0, this routine is logically a
     * no-op, removing and adding no elements to the list. However, by flowing
     * through this routine anyway, we get the important side effect that the
     * resulting listPtr is a list in canoncial form. This is important.
     * Resist any temptation to optimize this case.
     */


    elemPtrs = &listRepPtr->elements;
    numElems = listRepPtr->elemCount;

    if (first < 0) {
	first = 0;
    }
    if (first >= numElems) {
................................................................................
	}
	if (newPtr == NULL) {
	    attempt = numRequired;
	    newPtr = attemptckrealloc(listRepPtr, LIST_SIZE(attempt));
	}
	if (newPtr) {
	    listRepPtr = newPtr;
	    ListResetIntRep(listPtr, listRepPtr);
	    elemPtrs = &listRepPtr->elements;
	    listRepPtr->maxElemCount = attempt;
	    needGrow = numRequired > listRepPtr->maxElemCount;
	}
    }
    if (!needGrow && !isShared) {
	int shift;
................................................................................
#endif
		    }
		    return TCL_ERROR;
		}
	    }
	}

	ListResetIntRep(listPtr, listRepPtr);
	listRepPtr->refCount++;

	elemPtrs = &listRepPtr->elements;

	if (isShared) {
	    /*
	     * The old struct will remain in place; need new refCounts for the
................................................................................
    /*
     * Update the count of elements.
     */

    listRepPtr->elemCount = numRequired;

    /*
     * Invalidate and free any old representations that may not agree
     * with the revised list's internal representation.
     */

    listRepPtr->refCount++;
    TclFreeIntRep(listPtr);
    ListSetIntRep(listPtr, listRepPtr);
    listRepPtr->refCount--;

    TclInvalidateStringRep(listPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
    Tcl_Interp *interp,		/* Tcl interpreter. */
    Tcl_Obj *listPtr,		/* List being unpacked. */
    Tcl_Obj *argPtr)		/* Index or index list. */
{

    int index;			/* Index into the list. */
    Tcl_Obj *indexListCopy;
    List *listRepPtr;

    /*
     * Determine whether argPtr designates a list or a single index. We have
     * to be careful about the order of the checks to avoid repeated
     * shimmering; see TIP#22 and TIP#33 for the details.
     */

    ListGetIntRep(argPtr, listRepPtr);
    if ((listRepPtr == NULL)
	    && TclGetIntForIndexM(NULL , argPtr, 0, &index) == TCL_OK) {
	/*
	 * argPtr designates a single index.
	 */

	return TclLindexFlat(interp, listPtr, 1, &argPtr);
    }
................................................................................
	 * argPtr designates something that is neither an index nor a
	 * well-formed list. Report the error via TclLindexFlat.
	 */

	return TclLindexFlat(interp, listPtr, 1, &argPtr);
    }

    ListGetIntRep(indexListCopy, listRepPtr);


    assert(listRepPtr != NULL);


    listPtr = TclLindexFlat(interp, listPtr, listRepPtr->elemCount,

		&listRepPtr->elements);
    Tcl_DecrRefCount(indexListCopy);
    return listPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    Tcl_Obj *valuePtr)		/* Value arg to 'lset'. */
{
    int indexCount = 0;		/* Number of indices in the index list. */
    Tcl_Obj **indices = NULL;	/* Vector of indices in the index list. */
    Tcl_Obj *retValuePtr;	/* Pointer to the list to be returned. */
    int index;			/* Current index in the list - discarded. */
    Tcl_Obj *indexListCopy;
    List *listRepPtr;

    /*
     * Determine whether the index arg designates a list or a single index.
     * We have to be careful about the order of the checks to avoid repeated
     * shimmering; see TIP #22 and #23 for details.
     */

    ListGetIntRep(indexArgPtr, listRepPtr);
    if (listRepPtr == NULL
	    && TclGetIntForIndexM(NULL, indexArgPtr, 0, &index) == TCL_OK) {
	/*
	 * indexArgPtr designates a single index.
	 */

	return TclLsetFlat(interp, listPtr, 1, &indexArgPtr, valuePtr);

................................................................................
    int indexCount,		/* Number of index args. */
    Tcl_Obj *const indexArray[],
				/* Index args. */
    Tcl_Obj *valuePtr)		/* Value arg to 'lset'. */
{
    int index, result, len;
    Tcl_Obj *subListPtr, *retValuePtr, *chainPtr;
    Tcl_ObjIntRep *irPtr;

    /*
     * If there are no indices, simply return the new value.  (Without
     * indices, [lset] is a synonym for [set].
     */

    if (indexCount == 0) {
................................................................................
	     * variable.  Later on, when we set valuePtr in its proper place,
	     * then all containing lists will have their values changed, and
	     * will need their string reps spoiled.  We maintain a list of all
	     * those Tcl_Obj's (via a little intrep surgery) so we can spoil
	     * them at that time.
	     */

	    irPtr = Tcl_FetchIntRep(parentList, &tclListType);
	    irPtr->twoPtrValue.ptr2 = chainPtr;
	    chainPtr = parentList;
	}
    } while (indexCount > 0);

    /*
     * Either we've detected and error condition, and exited the loop with
     * result == TCL_ERROR, or we've successfully reached the last index, and
     * we're ready to store valuePtr.  In either case, we need to clean up our
     * string spoiling list of Tcl_Obj's.
     */

    while (chainPtr) {
	Tcl_Obj *objPtr = chainPtr;









	List *listRepPtr;

	/*
	 * Clear away our intrep surgery mess.
	 */

	irPtr = Tcl_FetchIntRep(objPtr, &tclListType);
	listRepPtr = irPtr->twoPtrValue.ptr1;
	chainPtr = irPtr->twoPtrValue.ptr2;
	
	if (result == TCL_OK) {

	    /*
	     * We're going to store valuePtr, so spoil string reps of all
	     * containing lists.
	     */

	    listRepPtr->refCount++;
	    TclFreeIntRep(objPtr);
	    ListSetIntRep(objPtr, listRepPtr);
	    listRepPtr->refCount--;

	    TclInvalidateStringRep(objPtr);
	} else {
	    irPtr->twoPtrValue.ptr2 = NULL;
	}
    }

    if (result != TCL_OK) {
	/*
	 * Error return; message is already in interp. Clean up any excess
	 * memory.
	 */
................................................................................

    len = -1;
    TclListObjLength(NULL, subListPtr, &len);
    if (index == len) {
	Tcl_ListObjAppendElement(NULL, subListPtr, valuePtr);
    } else {
	TclListObjSetElement(NULL, subListPtr, index, valuePtr);

	TclInvalidateStringRep(subListPtr);
    }
    Tcl_IncrRefCount(retValuePtr);
    return retValuePtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
    /*
     * Ensure that the listPtr parameter designates an unshared list.
     */

    if (Tcl_IsShared(listPtr)) {
	Tcl_Panic("%s called with shared object", "TclListObjSetElement");
    }

    ListGetIntRep(listPtr, listRepPtr);
    if (listRepPtr == NULL) {
	int result, length;

	(void) Tcl_GetStringFromObj(listPtr, &length);
	if (length == 0) {
	    if (interp != NULL) {
		Tcl_SetObjResult(interp,
			Tcl_NewStringObj("list index out of range", -1));
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "LSET",
			"BADINDEX", NULL);
	    }
	    return TCL_ERROR;
	}
	result = SetListFromAny(interp, listPtr);
	if (result != TCL_OK) {
	    return result;
	}
	ListGetIntRep(listPtr, listRepPtr);
    }


    elemCount = listRepPtr->elemCount;

    /*
     * Ensure that the index is in bounds.
     */

    if (index<0 || index>=elemCount) {
................................................................................
	while (elemCount--) {
	    *dst = *src++;
	    Tcl_IncrRefCount(*dst++);
	}

	listRepPtr->refCount--;

	listRepPtr = newPtr;
	ListResetIntRep(listPtr, listRepPtr);
    }
    elemPtrs = &listRepPtr->elements;

    /*
     * Add a reference to the new list element.
     */

................................................................................

    /*
     * Stash the new object in the list.
     */

    elemPtrs[index] = valuePtr;

    /*
     * Invalidate outdated intreps.
     */

    ListGetIntRep(listPtr, listRepPtr);
    listRepPtr->refCount++;
    TclFreeIntRep(listPtr);
    ListSetIntRep(listPtr, listRepPtr);
    listRepPtr->refCount--;

    TclInvalidateStringRep(listPtr);

    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * FreeListInternalRep --
................................................................................
 *	Deallocate the storage associated with a list object's internal
 *	representation.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Frees listPtr's List* internal representation, if no longer shared.

 *	May decrement the ref counts of element objects, which may free them.
 *
 *----------------------------------------------------------------------
 */

static void
FreeListInternalRep(
    Tcl_Obj *listPtr)		/* List object with internal rep to free. */
{
    List *listRepPtr;

    ListGetIntRep(listPtr, listRepPtr);
    assert(listRepPtr != NULL);

    if (listRepPtr->refCount-- <= 1) {
	Tcl_Obj **elemPtrs = &listRepPtr->elements;
	int i, numElems = listRepPtr->elemCount;

	for (i = 0;  i < numElems;  i++) {
	    Tcl_DecrRefCount(elemPtrs[i]);
	}
	ckfree(listRepPtr);
    }


}
 
/*
 *----------------------------------------------------------------------
 *
 * DupListInternalRep --
 *
................................................................................
 */

static void
DupListInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    List *listRepPtr;

    ListGetIntRep(srcPtr, listRepPtr);
    assert(listRepPtr != NULL);
    ListSetIntRep(copyPtr, listRepPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetListFromAny --
................................................................................
     * Dictionaries are a special case; they have a string representation such
     * that *all* valid dictionaries are valid lists. Hence we can convert
     * more directly. Only do this when there's no existing string rep; if
     * there is, it is the string rep that's authoritative (because it could
     * describe duplicate keys).
     */

    if (!TclHasStringRep(objPtr) && Tcl_FetchIntRep(objPtr, &tclDictType)) {
	Tcl_Obj *keyPtr, *valuePtr;
	Tcl_DictSearch search;
	int done, size;

	/*
	 * Create the new list representation. Note that we do not need to do
	 * anything with the string representation as the transformation (and
................................................................................

	/*
	 * Each iteration, parse and store a list element.
	 */

	while (nextElem < limit) {
	    const char *elemStart;
	    char *check;
	    int elemSize, literal;

	    if (TCL_OK != TclFindElement(interp, nextElem, limit - nextElem,
		    &elemStart, &nextElem, &elemSize, &literal)) {
	    fail:
		while (--elemPtrs >= &listRepPtr->elements) {
		    Tcl_DecrRefCount(*elemPtrs);
		}
		ckfree(listRepPtr);
		return TCL_ERROR;
	    }
	    if (elemStart == limit) {
		break;
	    }

	    TclNewObj(*elemPtrs);
	    TclInvalidateStringRep(*elemPtrs);
	    check = Tcl_InitStringRep(*elemPtrs, literal ? elemStart : NULL,
		    elemSize);
	    if (elemSize && check == NULL) {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "cannot construct list, out of memory", -1));
		    Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL);
		}
		goto fail;
	    }
	    if (!literal) {
		Tcl_InitStringRep(*elemPtrs, NULL,
			TclCopyAndCollapse(elemSize, elemStart, check));
	    }

	    Tcl_IncrRefCount(*elemPtrs++);/* Since list now holds ref to it. */
	}

 	listRepPtr->elemCount = elemPtrs - &listRepPtr->elements;
    }

    /*
     * Store the new internalRep. We do this as late
     * as possible to allow the conversion code, in particular
     * Tcl_GetStringFromObj, to use the old internalRep.
     */


    ListSetIntRep(objPtr, listRepPtr);
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................

static void
UpdateStringOfList(
    Tcl_Obj *listPtr)		/* List object with string rep to update. */
{
#   define LOCAL_SIZE 64
    char localFlags[LOCAL_SIZE], *flagPtr = NULL;


    int numElems, i, length, bytesNeeded = 0;
    const char *elem;
    char *dst;
    Tcl_Obj **elemPtrs;
    List *listRepPtr;

    ListGetIntRep(listPtr, listRepPtr);

    assert(listRepPtr != NULL);

    numElems = listRepPtr->elemCount;

    /*
     * Mark the list as being canonical; although it will now have a string
     * rep, it is one we derived through proper "canonical" quoting and so
     * it's known to be free from nasties relating to [concat] and [eval].
     */

................................................................................
    listRepPtr->canonicalFlag = 1;

    /*
     * Handle empty list case first, so rest of the routine is simpler.
     */

    if (numElems == 0) {
	Tcl_InitStringRep(listPtr, NULL, 0);

	return;
    }

    /*
     * Pass 1: estimate space, gather flags.
     */

................................................................................
	if (bytesNeeded < 0) {
	    Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
	}
    }
    if (bytesNeeded > INT_MAX - numElems + 1) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }
    bytesNeeded += numElems - 1;

    /*
     * Pass 2: copy into string rep buffer.
     */

    dst = Tcl_InitStringRep(listPtr, NULL, bytesNeeded);
    TclOOM(dst, bytesNeeded);

    for (i = 0; i < numElems; i++) {
	flagPtr[i] |= (i ? TCL_DONT_QUOTE_HASH : 0);
	elem = TclGetStringFromObj(elemPtrs[i], &length);
	dst += TclConvertElement(elem, length, dst, flagPtr[i]);
	*dst++ = ' ';
    }
    (void) Tcl_InitStringRep(listPtr, NULL, bytesNeeded);

    if (flagPtr != localFlags) {
	ckfree(flagPtr);
    }
}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

Changes to generic/tclNamesp.c.

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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclCompile.h" /* for TclLogCommandInfo visibility */


/*
 * Thread-local storage used to avoid having a global lock on data that is not
 * limited to a single interpreter.
 */

typedef struct {
................................................................................
static const Tcl_ObjType nsNameType = {
    "nsName",			/* the type's name */
    FreeNsNameInternalRep,	/* freeIntRepProc */
    DupNsNameInternalRep,	/* dupIntRepProc */
    NULL,			/* updateStringProc */
    SetNsNameFromAny		/* setFromAnyProc */
};

















/*
 * Array of values describing how to implement each standard subcommand of the
 * "namespace" command.
 */

static const EnsembleImplMap defaultNamespaceMap[] = {
................................................................................
GetNamespaceFromObj(
    Tcl_Interp *interp,		/* The current interpreter. */
    Tcl_Obj *objPtr,		/* The object to be resolved as the name of a
				 * namespace. */
    Tcl_Namespace **nsPtrPtr)	/* Result namespace pointer goes here. */
{
    ResolvedNsName *resNamePtr;



    Namespace *nsPtr, *refNsPtr;

    if (objPtr->typePtr == &nsNameType) {
	/*
	 * Check that the ResolvedNsName is still valid; avoid letting the ref
	 * cross interps.
	 */

	resNamePtr = objPtr->internalRep.twoPtrValue.ptr1;
	nsPtr = resNamePtr->nsPtr;
	refNsPtr = resNamePtr->refNsPtr;
	if (!(nsPtr->flags & NS_DYING) && (interp == nsPtr->interp)
		&& (!refNsPtr || (refNsPtr ==
		(Namespace *) TclGetCurrentNamespace(interp)))) {
	    *nsPtrPtr = (Tcl_Namespace *) nsPtr;
	    return TCL_OK;
	}

    }
    if (SetNsNameFromAny(interp, objPtr) == TCL_OK) {
	resNamePtr = objPtr->internalRep.twoPtrValue.ptr1;


	*nsPtrPtr = (Tcl_Namespace *) resNamePtr->nsPtr;
	return TCL_OK;
    }
    return TCL_ERROR;
}
 
/*
................................................................................
 */

static void
FreeNsNameInternalRep(
    register Tcl_Obj *objPtr)	/* nsName object with internal representation
				 * to free. */
{
    ResolvedNsName *resNamePtr = objPtr->internalRep.twoPtrValue.ptr1;




    /*
     * Decrement the reference count of the namespace. If there are no more
     * references, free it up.
     */

    if (resNamePtr->refCount-- <= 1) {
	/*
................................................................................
	 * namespace is dead, and there are no more references to it, free
	 * it.
	 */

	TclNsDecrRefCount(resNamePtr->nsPtr);
	ckfree(resNamePtr);
    }
    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupNsNameInternalRep --
 *
................................................................................
 */

static void
DupNsNameInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. */
{
    ResolvedNsName *resNamePtr = srcPtr->internalRep.twoPtrValue.ptr1;

    copyPtr->internalRep.twoPtrValue.ptr1 = resNamePtr;
    resNamePtr->refCount++;
    copyPtr->typePtr = &nsNameType;
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetNsNameFromAny --
 *
................................................................................
    if (interp == NULL) {
	return TCL_ERROR;
    }

    name = TclGetString(objPtr);
    TclGetNamespaceForQualName(interp, name, NULL, TCL_FIND_ONLY_NS,
	     &nsPtr, &dummy1Ptr, &dummy2Ptr, &dummy);





    /*
     * If we found a namespace, then create a new ResolvedNsName structure
     * that holds a reference to it.
     */

    if ((nsPtr == NULL) || (nsPtr->flags & NS_DYING)) {
	/*
	 * Our failed lookup proves any previously cached nsName intrep is no
	 * longer valid. Get rid of it so we no longer waste memory storing
	 * it, nor time determining its invalidity again and again.
	 */

	if (objPtr->typePtr == &nsNameType) {
	    TclFreeIntRep(objPtr);
	}
	return TCL_ERROR;
    }

    nsPtr->refCount++;
    resNamePtr = ckalloc(sizeof(ResolvedNsName));
    resNamePtr->nsPtr = nsPtr;
    if ((name[0] == ':') && (name[1] == ':')) {
	resNamePtr->refNsPtr = NULL;
    } else {
	resNamePtr->refNsPtr = (Namespace *) TclGetCurrentNamespace(interp);
    }
    resNamePtr->refCount = 1;
    TclFreeIntRep(objPtr);
    objPtr->internalRep.twoPtrValue.ptr1 = resNamePtr;
    objPtr->typePtr = &nsNameType;
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclGetNamespaceCommandTable --






>







 







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4809
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4811
4812
4813













4814
4815
4816
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4820
4821
4822
4823


4824
4825
4826
4827
4828
4829
4830
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclCompile.h" /* for TclLogCommandInfo visibility */
#include <assert.h>

/*
 * Thread-local storage used to avoid having a global lock on data that is not
 * limited to a single interpreter.
 */

typedef struct {
................................................................................
static const Tcl_ObjType nsNameType = {
    "nsName",			/* the type's name */
    FreeNsNameInternalRep,	/* freeIntRepProc */
    DupNsNameInternalRep,	/* dupIntRepProc */
    NULL,			/* updateStringProc */
    SetNsNameFromAny		/* setFromAnyProc */
};

#define NsNameSetIntRep(objPtr, nnPtr)					\
    do {								\
	Tcl_ObjIntRep ir;						\
	(nnPtr)->refCount++;						\
	ir.twoPtrValue.ptr1 = (nnPtr);					\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), &nsNameType, &ir);			\
    } while (0)

#define NsNameGetIntRep(objPtr, nnPtr)					\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &nsNameType);			\
	(nnPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

/*
 * Array of values describing how to implement each standard subcommand of the
 * "namespace" command.
 */

static const EnsembleImplMap defaultNamespaceMap[] = {
................................................................................
GetNamespaceFromObj(
    Tcl_Interp *interp,		/* The current interpreter. */
    Tcl_Obj *objPtr,		/* The object to be resolved as the name of a
				 * namespace. */
    Tcl_Namespace **nsPtrPtr)	/* Result namespace pointer goes here. */
{
    ResolvedNsName *resNamePtr;

    NsNameGetIntRep(objPtr, resNamePtr);
    if (resNamePtr) {
	Namespace *nsPtr, *refNsPtr;


	/*
	 * Check that the ResolvedNsName is still valid; avoid letting the ref
	 * cross interps.
	 */


	nsPtr = resNamePtr->nsPtr;
	refNsPtr = resNamePtr->refNsPtr;
	if (!(nsPtr->flags & NS_DYING) && (interp == nsPtr->interp)
		&& (!refNsPtr || (refNsPtr ==
		(Namespace *) TclGetCurrentNamespace(interp)))) {
	    *nsPtrPtr = (Tcl_Namespace *) nsPtr;
	    return TCL_OK;
	}
	Tcl_StoreIntRep(objPtr, &nsNameType, NULL);
    }
    if (SetNsNameFromAny(interp, objPtr) == TCL_OK) {

	NsNameGetIntRep(objPtr, resNamePtr);
	assert(resNamePtr != NULL);
	*nsPtrPtr = (Tcl_Namespace *) resNamePtr->nsPtr;
	return TCL_OK;
    }
    return TCL_ERROR;
}
 
/*
................................................................................
 */

static void
FreeNsNameInternalRep(
    register Tcl_Obj *objPtr)	/* nsName object with internal representation
				 * to free. */
{
    ResolvedNsName *resNamePtr;

    NsNameGetIntRep(objPtr, resNamePtr);
    assert(resNamePtr != NULL);
	
    /*
     * Decrement the reference count of the namespace. If there are no more
     * references, free it up.
     */

    if (resNamePtr->refCount-- <= 1) {
	/*
................................................................................
	 * namespace is dead, and there are no more references to it, free
	 * it.
	 */

	TclNsDecrRefCount(resNamePtr->nsPtr);
	ckfree(resNamePtr);
    }

}
 
/*
 *----------------------------------------------------------------------
 *
 * DupNsNameInternalRep --
 *
................................................................................
 */

static void
DupNsNameInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. */
{
    ResolvedNsName *resNamePtr;

    NsNameGetIntRep(srcPtr, resNamePtr);
    assert(resNamePtr != NULL);
    NsNameSetIntRep(copyPtr, resNamePtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetNsNameFromAny --
 *
................................................................................
    if (interp == NULL) {
	return TCL_ERROR;
    }

    name = TclGetString(objPtr);
    TclGetNamespaceForQualName(interp, name, NULL, TCL_FIND_ONLY_NS,
	     &nsPtr, &dummy1Ptr, &dummy2Ptr, &dummy);

    if ((nsPtr == NULL) || (nsPtr->flags & NS_DYING)) {
	return TCL_ERROR;
    }

    /*
     * If we found a namespace, then create a new ResolvedNsName structure
     * that holds a reference to it.
     */














    nsPtr->refCount++;
    resNamePtr = ckalloc(sizeof(ResolvedNsName));
    resNamePtr->nsPtr = nsPtr;
    if ((name[0] == ':') && (name[1] == ':')) {
	resNamePtr->refNsPtr = NULL;
    } else {
	resNamePtr->refNsPtr = (Namespace *) TclGetCurrentNamespace(interp);
    }
    resNamePtr->refCount = 0;
    NsNameSetIntRep(objPtr, resNamePtr);


    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclGetNamespaceCommandTable --

Changes to generic/tclOOCall.c.

11
12
13
14
15
16
17

18
19
20
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22
23
24
...
124
125
126
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129
130

131
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133
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135
136
137
...
218
219
220
221
222
223
224


225
226
227
228
229

230
231
232
233
234
235
236
...
249
250
251
252
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258
259
260

261
262
263
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265
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267
268
269
270

271
272
273
274
275
276
277
....
1161
1162
1163
1164
1165
1166
1167

1168
1169
1170

1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tclInt.h"
#include "tclOOInt.h"


/*
 * Structure containing a CallContext and any other values needed only during
 * the construction of the CallContext.
 */

struct ChainBuilder {
................................................................................
static const Tcl_ObjType methodNameType = {
    "TclOO method name",
    FreeMethodNameRep,
    DupMethodNameRep,
    NULL,
    NULL
};

 
/*
 * ----------------------------------------------------------------------
 *
 * TclOODeleteContext --
 *
 *	Destroys a method call-chain context, which should not be in use.
................................................................................
 */

static inline void
StashCallChain(
    Tcl_Obj *objPtr,
    CallChain *callPtr)
{


    callPtr->refCount++;
    TclGetString(objPtr);
    TclFreeIntRep(objPtr);
    objPtr->typePtr = &methodNameType;
    objPtr->internalRep.twoPtrValue.ptr1 = callPtr;

}

void
TclOOStashContext(
    Tcl_Obj *objPtr,
    CallContext *contextPtr)
{
................................................................................
 */

static void
DupMethodNameRep(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dstPtr)
{
    register CallChain *callPtr = srcPtr->internalRep.twoPtrValue.ptr1;

    dstPtr->typePtr = &methodNameType;
    dstPtr->internalRep.twoPtrValue.ptr1 = callPtr;
    callPtr->refCount++;

}

static void
FreeMethodNameRep(
    Tcl_Obj *objPtr)
{
    register CallChain *callPtr = objPtr->internalRep.twoPtrValue.ptr1;

    TclOODeleteChain(callPtr);
    objPtr->typePtr = NULL;

}
 
/*
 * ----------------------------------------------------------------------
 *
 * TclOOInvokeContext --
 *
................................................................................
	/*
	 * Check if we can get the chain out of the Tcl_Obj method name or out
	 * of the cache. This is made a bit more complex by the fact that
	 * there are multiple different layers of cache (in the Tcl_Obj, in
	 * the object, and in the class).
	 */


	const int reuseMask = (WANT_PUBLIC(flags) ? ~0 : ~PUBLIC_METHOD);

	if (cacheInThisObj->typePtr == &methodNameType) {

	    callPtr = cacheInThisObj->internalRep.twoPtrValue.ptr1;
	    if (IsStillValid(callPtr, oPtr, flags, reuseMask)) {
		callPtr->refCount++;
		goto returnContext;
	    }
	    FreeMethodNameRep(cacheInThisObj);
	}

	if (oPtr->flags & USE_CLASS_CACHE) {
	    if (oPtr->selfCls->classChainCache != NULL) {
		hPtr = Tcl_FindHashEntry(oPtr->selfCls->classChainCache,
			(char *) methodNameObj);
	    } else {






>







 







>







 







>
>


<
<
|
>







 







|
<
<
<
<
>






<
<
|
<
>







 







>


<
>
|




|







11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
...
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
...
220
221
222
223
224
225
226
227
228
229
230


231
232
233
234
235
236
237
238
239
...
252
253
254
255
256
257
258
259




260
261
262
263
264
265
266


267

268
269
270
271
272
273
274
275
....
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168

1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tclInt.h"
#include "tclOOInt.h"
#include <assert.h>

/*
 * Structure containing a CallContext and any other values needed only during
 * the construction of the CallContext.
 */

struct ChainBuilder {
................................................................................
static const Tcl_ObjType methodNameType = {
    "TclOO method name",
    FreeMethodNameRep,
    DupMethodNameRep,
    NULL,
    NULL
};

 
/*
 * ----------------------------------------------------------------------
 *
 * TclOODeleteContext --
 *
 *	Destroys a method call-chain context, which should not be in use.
................................................................................
 */

static inline void
StashCallChain(
    Tcl_Obj *objPtr,
    CallChain *callPtr)
{
    Tcl_ObjIntRep ir;

    callPtr->refCount++;
    TclGetString(objPtr);


    ir.twoPtrValue.ptr1 = callPtr;
    Tcl_StoreIntRep(objPtr, &methodNameType, &ir);
}

void
TclOOStashContext(
    Tcl_Obj *objPtr,
    CallContext *contextPtr)
{
................................................................................
 */

static void
DupMethodNameRep(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dstPtr)
{
    StashCallChain(dstPtr,




	    Tcl_FetchIntRep(srcPtr, &methodNameType)->twoPtrValue.ptr1);
}

static void
FreeMethodNameRep(
    Tcl_Obj *objPtr)
{


    TclOODeleteChain(

	    Tcl_FetchIntRep(objPtr, &methodNameType)->twoPtrValue.ptr1);
}
 
/*
 * ----------------------------------------------------------------------
 *
 * TclOOInvokeContext --
 *
................................................................................
	/*
	 * Check if we can get the chain out of the Tcl_Obj method name or out
	 * of the cache. This is made a bit more complex by the fact that
	 * there are multiple different layers of cache (in the Tcl_Obj, in
	 * the object, and in the class).
	 */

	const Tcl_ObjIntRep *irPtr;
	const int reuseMask = (WANT_PUBLIC(flags) ? ~0 : ~PUBLIC_METHOD);


	if ((irPtr = Tcl_FetchIntRep(cacheInThisObj, &methodNameType))) {
	    callPtr = irPtr->twoPtrValue.ptr1;
	    if (IsStillValid(callPtr, oPtr, flags, reuseMask)) {
		callPtr->refCount++;
		goto returnContext;
	    }
	    Tcl_StoreIntRep(cacheInThisObj, &methodNameType, NULL);
	}

	if (oPtr->flags & USE_CLASS_CACHE) {
	    if (oPtr->selfCls->classChainCache != NULL) {
		hPtr = Tcl_FindHashEntry(oPtr->selfCls->classChainCache,
			(char *) methodNameObj);
	    } else {

Changes to generic/tclOOMethod.c.

795
796
797
798
799
800
801

802
803
804
805
806
807
808
...
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
....
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
....
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
    PMFrameData *fdPtr)		/* Place to store information about the call
				 * frame. */
{
    Namespace *nsPtr = (Namespace *) contextPtr->oPtr->namespacePtr;
    register int result;
    const char *namePtr;
    CallFrame **framePtrPtr = &fdPtr->framePtr;


    /*
     * Compute basic information on the basis of the type of method it is.
     */

    if (contextPtr->callPtr->flags & CONSTRUCTOR) {
	namePtr = "<constructor>";
................................................................................
    /*
     * [Bug 2037727] Always call TclProcCompileProc so that we check not only
     * that we have bytecode, but also that it remains valid. Note that we set
     * the namespace of the code here directly; this is a hack, but the
     * alternative is *so* slow...
     */

    if (pmPtr->procPtr->bodyPtr->typePtr == &tclByteCodeType) {
	ByteCode *codePtr =
		pmPtr->procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;

	codePtr->nsPtr = nsPtr;
    }
    result = TclProcCompileProc(interp, pmPtr->procPtr,
	    pmPtr->procPtr->bodyPtr, nsPtr, "body of method", namePtr);
    if (result != TCL_OK) {
	goto failureReturn;
    }
................................................................................
    /*
     * Must strip the internal representation in order to ensure that any
     * bound references to instance variables are removed. [Bug 3609693]
     */

    bodyObj = Tcl_DuplicateObj(pmPtr->procPtr->bodyPtr);
    Tcl_GetString(bodyObj);
    TclFreeIntRep(bodyObj);

    /*
     * Create the actual copy of the method record, manufacturing a new proc
     * record.
     */

    pm2Ptr = ckalloc(sizeof(ProcedureMethod));
................................................................................
Tcl_Obj *
TclOOGetMethodBody(
    Method *mPtr)
{
    if (mPtr->typePtr == &procMethodType) {
	ProcedureMethod *pmPtr = mPtr->clientData;

	if (pmPtr->procPtr->bodyPtr->bytes == NULL) {
	    (void) Tcl_GetString(pmPtr->procPtr->bodyPtr);
	}
	return pmPtr->procPtr->bodyPtr;
    }
    return NULL;
}

Tcl_Obj *
TclOOGetFwdFromMethod(






>







 







|
|
<
<







 







|







 







<
|
<







795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
...
861
862
863
864
865
866
867
868
869


870
871
872
873
874
875
876
....
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
....
1565
1566
1567
1568
1569
1570
1571

1572

1573
1574
1575
1576
1577
1578
1579
    PMFrameData *fdPtr)		/* Place to store information about the call
				 * frame. */
{
    Namespace *nsPtr = (Namespace *) contextPtr->oPtr->namespacePtr;
    register int result;
    const char *namePtr;
    CallFrame **framePtrPtr = &fdPtr->framePtr;
    ByteCode *codePtr;

    /*
     * Compute basic information on the basis of the type of method it is.
     */

    if (contextPtr->callPtr->flags & CONSTRUCTOR) {
	namePtr = "<constructor>";
................................................................................
    /*
     * [Bug 2037727] Always call TclProcCompileProc so that we check not only
     * that we have bytecode, but also that it remains valid. Note that we set
     * the namespace of the code here directly; this is a hack, but the
     * alternative is *so* slow...
     */

    ByteCodeGetIntRep(pmPtr->procPtr->bodyPtr, &tclByteCodeType, codePtr);
    if (codePtr) {


	codePtr->nsPtr = nsPtr;
    }
    result = TclProcCompileProc(interp, pmPtr->procPtr,
	    pmPtr->procPtr->bodyPtr, nsPtr, "body of method", namePtr);
    if (result != TCL_OK) {
	goto failureReturn;
    }
................................................................................
    /*
     * Must strip the internal representation in order to ensure that any
     * bound references to instance variables are removed. [Bug 3609693]
     */

    bodyObj = Tcl_DuplicateObj(pmPtr->procPtr->bodyPtr);
    Tcl_GetString(bodyObj);
    Tcl_StoreIntRep(pmPtr->procPtr->bodyPtr, &tclByteCodeType, NULL);

    /*
     * Create the actual copy of the method record, manufacturing a new proc
     * record.
     */

    pm2Ptr = ckalloc(sizeof(ProcedureMethod));
................................................................................
Tcl_Obj *
TclOOGetMethodBody(
    Method *mPtr)
{
    if (mPtr->typePtr == &procMethodType) {
	ProcedureMethod *pmPtr = mPtr->clientData;


	(void) TclGetString(pmPtr->procPtr->bodyPtr);

	return pmPtr->procPtr->bodyPtr;
    }
    return NULL;
}

Tcl_Obj *
TclOOGetFwdFromMethod(

Changes to generic/tclObj.c.

13
14
15
16
17
18
19

20
21
22
23
24
25
26
....
1061
1062
1063
1064
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1066
1067
1068
1069
1070

1071
1072
1073
1074
1075
1076
1077
....
1721
1722
1723
1724
1725
1726
1727





















































































1728
1729
1730
1731
1732
1733
1734
....
1743
1744
1745
1746
1747
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1749





















































































































1750
1751
1752
1753
1754
1755
1756
....
1831
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1833
1834
1835
1836
1837

1838
1839
1840
1841
1842
1843
1844
....
2217
2218
2219
2220
2221
2222
2223

2224
2225
2226
2227
2228
2229
2230
....
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
....
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583


2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598


2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
....
2702
2703
2704
2705
2706
2707
2708

2709
2710
2711
2712
2713
2714
2715
....
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
....
3278
3279
3280
3281
3282
3283
3284
3285




3286
3287
3288
3289
3290
3291

3292
3293
3294
3295
3296
3297
3298
....
3404
3405
3406
3407
3408
3409
3410

3411
3412
3413





3414
3415
3416
3417
3418
3419
3420
3421
3422
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tommath.h"
#include <math.h>


/*
 * Table of all object types.
 */

static Tcl_HashTable typeTable;
static int typeTableInitialized = 0;	/* 0 means not yet initialized. */
................................................................................
    register Tcl_Obj *objPtr,
    register const char *file,	/* The name of the source file calling this
				 * function; used for debugging. */
    register int line)		/* Line number in the source file; used for
				 * debugging. */
{
    objPtr->refCount = 0;
    objPtr->bytes = &tclEmptyString;
    objPtr->length = 0;
    objPtr->typePtr = NULL;


#if TCL_THREADS
    /*
     * Add entry to a thread local map used to check if a Tcl_Obj was
     * allocated by the currently executing thread.
     */

................................................................................
    }
    return objPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *





















































































 * Tcl_InvalidateStringRep --
 *
 *	This function is called to invalidate an object's string
 *	representation.
 *
 * Results:
 *	None.
................................................................................
void
Tcl_InvalidateStringRep(
    register Tcl_Obj *objPtr)	/* Object whose string rep byte pointer should
				 * be freed. */
{
    TclInvalidateStringRep(objPtr);
}





















































































































 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewBooleanObj --
 *
 *	This function is normally called when not debugging: i.e., when
................................................................................
				 * function; used for debugging. */
    int line)			/* Line number in the source file; used for
				 * debugging. */
{
    register Tcl_Obj *objPtr;

    TclDbNewObj(objPtr, file, line);

    objPtr->bytes = NULL;

    objPtr->internalRep.wideValue = (boolValue != 0);
    objPtr->typePtr = &tclIntType;
    return objPtr;
}

................................................................................
				 * function; used for debugging. */
    int line)			/* Line number in the source file; used for
				 * debugging. */
{
    register Tcl_Obj *objPtr;

    TclDbNewObj(objPtr, file, line);

    objPtr->bytes = NULL;

    objPtr->internalRep.doubleValue = dblValue;
    objPtr->typePtr = &tclDoubleType;
    return objPtr;
}

................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfDouble(
    register Tcl_Obj *objPtr)	/* Double obj with string rep to update. */
{
    char buffer[TCL_DOUBLE_SPACE];
    register int len;

    Tcl_PrintDouble(NULL, objPtr->internalRep.doubleValue, buffer);
    len = strlen(buffer);

    objPtr->bytes = ckalloc(len + 1);
    memcpy(objPtr->bytes, buffer, (unsigned) len + 1);
    objPtr->length = len;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewIntObj --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfInt(
    register Tcl_Obj *objPtr)	/* Int object whose string rep to update. */
{
    char buffer[TCL_INTEGER_SPACE];
    register int len;



    len = TclFormatInt(buffer, objPtr->internalRep.wideValue);

    objPtr->bytes = ckalloc(len + 1);
    memcpy(objPtr->bytes, buffer, (unsigned) len + 1);
    objPtr->length = len;
}

#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9 && !defined(TCL_WIDE_INT_IS_LONG)
static void
UpdateStringOfOldInt(
    register Tcl_Obj *objPtr)	/* Int object whose string rep to update. */
{
    char buffer[TCL_INTEGER_SPACE];
    register int len;



    len = TclFormatInt(buffer, objPtr->internalRep.longValue);

    objPtr->bytes = ckalloc(len + 1);
    memcpy(objPtr->bytes, buffer, (unsigned) len + 1);
    objPtr->length = len;
}
#endif
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewLongObj --
................................................................................
				 * function; used for debugging. */
    int line)			/* Line number in the source file; used for
				 * debugging. */
{
    register Tcl_Obj *objPtr;

    TclDbNewObj(objPtr, file, line);

    objPtr->bytes = NULL;

    objPtr->internalRep.wideValue = longValue;
    objPtr->typePtr = &tclIntType;
    return objPtr;
}

................................................................................

static void
UpdateStringOfBignum(
    Tcl_Obj *objPtr)
{
    mp_int bignumVal;
    int size;
    int status;
    char *stringVal;

    UNPACK_BIGNUM(objPtr, bignumVal);
    status = mp_radix_size(&bignumVal, 10, &size);
    if (status != MP_OKAY) {
	Tcl_Panic("radix size failure in UpdateStringOfBignum");
    }
    if (size < 2) {
	/*
	 * mp_radix_size() returns < 2 when more than INT_MAX bytes would be
	 * needed to hold the string rep (because mp_radix_size ignores
	 * integer overflow issues).
................................................................................
	 *
	 * Note that so long as we enforce our bignums to the size that fits
	 * in a packed bignum, this branch will never be taken.
	 */

	Tcl_Panic("UpdateStringOfBignum: string length limit exceeded");
    }
    stringVal = ckalloc(size);




    status = mp_toradix_n(&bignumVal, stringVal, 10, size);
    if (status != MP_OKAY) {
	Tcl_Panic("conversion failure in UpdateStringOfBignum");
    }
    objPtr->bytes = stringVal;
    objPtr->length = size - 1;	/* size includes a trailing NUL byte. */

}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewBignumObj --
 *
................................................................................
	    if (copy || Tcl_IsShared(objPtr)) {
		mp_int temp;

		UNPACK_BIGNUM(objPtr, temp);
		mp_init_copy(bignumValue, &temp);
	    } else {
		UNPACK_BIGNUM(objPtr, *bignumValue);

		objPtr->internalRep.twoPtrValue.ptr1 = NULL;
		objPtr->internalRep.twoPtrValue.ptr2 = NULL;
		objPtr->typePtr = NULL;





		if (objPtr->bytes == NULL) {
		    TclInitStringRep(objPtr, &tclEmptyString, 0);
		}
	    }
	    return TCL_OK;
	}
	if (objPtr->typePtr == &tclIntType) {
	    TclInitBignumFromWideInt(bignumValue,
		    objPtr->internalRep.wideValue);






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 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tommath.h"
#include <math.h>
#include <assert.h>

/*
 * Table of all object types.
 */

static Tcl_HashTable typeTable;
static int typeTableInitialized = 0;	/* 0 means not yet initialized. */
................................................................................
    register Tcl_Obj *objPtr,
    register const char *file,	/* The name of the source file calling this
				 * function; used for debugging. */
    register int line)		/* Line number in the source file; used for
				 * debugging. */
{
    objPtr->refCount = 0;


    objPtr->typePtr = NULL;
    TclInitStringRep(objPtr, NULL, 0);

#if TCL_THREADS
    /*
     * Add entry to a thread local map used to check if a Tcl_Obj was
     * allocated by the currently executing thread.
     */

................................................................................
    }
    return objPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_InitStringRep --
 *
 *	This function is called in several configurations to provide all
 *	the tools needed to set an object's string representation. The
 *	function is determined by the arguments.
 *	
 *	(objPtr->bytes != NULL && bytes != NULL) || (numBytes < 0)
 *	    Invalid call -- panic!
 *	
 *	objPtr->bytes == NULL && bytes == NULL && numBytes >= 0
 *	    Allocation only - allocate space for (numBytes+1) chars.
 *	    store in objPtr->bytes and return. Also sets
 *	    objPtr->length to 0 and objPtr->bytes[0] to NUL.
 *	
 *	objPtr->bytes == NULL && bytes != NULL && numBytes >= 0
 *	    Allocate and copy. bytes is assumed to point to chars to
 *	    copy into the string rep. objPtr->length = numBytes. Allocate
 *	    array of (numBytes + 1) chars. store in objPtr->bytes. Copy
 *	    numBytes chars from bytes to objPtr->bytes; Set
 *	    objPtr->bytes[numBytes] to NUL and return objPtr->bytes.
 *	    Caller must guarantee there are numBytes chars at bytes to
 *	    be copied.
 *
 *	objPtr->bytes != NULL && bytes == NULL && numBytes >= 0
 *	    Truncate.  Set objPtr->length to numBytes and
 *	    objPr->bytes[numBytes] to NUL.  Caller has to guarantee
 *	    that a prior allocating call allocated enough bytes for
 *	    this to be valid. Return objPtr->bytes.
 *
 *	Caller is expected to ascertain that the bytes copied into
 *	the string rep make up complete valid UTF-8 characters.
 *
 * Results:
 *	A pointer to the string rep of objPtr.
 *
 * Side effects:
 *	As described above.
 *
 *----------------------------------------------------------------------
 */

char *
Tcl_InitStringRep(
    Tcl_Obj *objPtr,	/* Object whose string rep is to be set */
    const char *bytes,
    unsigned int numBytes)
{
    assert(objPtr->bytes == NULL || bytes == NULL);

    if (numBytes > INT_MAX) {
	Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
    }

    /* Allocate */
    if (objPtr->bytes == NULL) {
	/* Allocate only as empty - extend later if bytes copied */
	objPtr->length = 0;
	if (numBytes) {
	    objPtr->bytes = attemptckalloc(numBytes + 1);
	    if (objPtr->bytes == NULL) {
		return NULL;
	    }
	    if (bytes) {
		/* Copy */
		memcpy(objPtr->bytes, bytes, numBytes);
		objPtr->length = (int) numBytes;
	    }
	} else {
	    TclInitStringRep(objPtr, NULL, 0);
	}
    } else {
	/* objPtr->bytes != NULL bytes == NULL - Truncate */
	objPtr->bytes = ckrealloc(objPtr->bytes, numBytes + 1);
	objPtr->length = (int)numBytes;
    }

    /* Terminate */
    objPtr->bytes[objPtr->length] = '\0';

    return objPtr->bytes;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_InvalidateStringRep --
 *
 *	This function is called to invalidate an object's string
 *	representation.
 *
 * Results:
 *	None.
................................................................................
void
Tcl_InvalidateStringRep(
    register Tcl_Obj *objPtr)	/* Object whose string rep byte pointer should
				 * be freed. */
{
    TclInvalidateStringRep(objPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_HasStringRep --
 *
 *	This function reports whether object has a string representation.
 *
 * Results:
 *	Boolean.
 *----------------------------------------------------------------------
 */

int
Tcl_HasStringRep(
    Tcl_Obj *objPtr)	/* Object to test */
{
    return TclHasStringRep(objPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_StoreIntRep --
 *
 *	This function is called to set the object's internal
 *	representation to match a particular type.
 *
 *	It is the caller's responsibility to guarantee that
 *	the value of the submitted IntRep is in agreement with
 *	the value of any existing string rep.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Calls the freeIntRepProc of the current Tcl_ObjType, if any.
 *	Sets the internalRep and typePtr fields to the submitted values.
 *
 *----------------------------------------------------------------------
 */

void
Tcl_StoreIntRep(
    Tcl_Obj *objPtr,		/* Object whose internal rep should be set. */
    const Tcl_ObjType *typePtr,	/* New type for the object */
    const Tcl_ObjIntRep *irPtr)	/* New IntRep for the object */
{
    /* Clear out any existing IntRep ( "shimmer" ) */
    TclFreeIntRep(objPtr);

    /* When irPtr == NULL, just leave objPtr with no IntRep for typePtr */
    if (irPtr) {
	/* Copy the new IntRep into place */
	objPtr->internalRep = *irPtr;

	/* Set the type to match */
	objPtr->typePtr = typePtr;
    }
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_FetchIntRep --
 *
 *	This function is called to retrieve the object's internal
 *	representation matching a requested type, if any.
 *
 * Results:
 *	A read-only pointer to the associated Tcl_ObjIntRep, or
 *	NULL if no such internal representation exists.
 *
 * Side effects:
 *	Calls the freeIntRepProc of the current Tcl_ObjType, if any.
 *	Sets the internalRep and typePtr fields to the submitted values.
 *
 *----------------------------------------------------------------------
 */

Tcl_ObjIntRep *
Tcl_FetchIntRep(
    Tcl_Obj *objPtr,		/* Object to fetch from. */
    const Tcl_ObjType *typePtr)	/* Requested type */
{
    /* If objPtr type doesn't match request, nothing can be fetched */
    if (objPtr->typePtr != typePtr) {
	return NULL;
    }

    /* Type match! objPtr IntRep is the one sought. */
    return &(objPtr->internalRep);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_FreeIntRep --
 *
 *	This function is called to free an object's internal representation.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Calls the freeIntRepProc of the current Tcl_ObjType, if any.
 *	Sets typePtr field to NULL.
 *
 *----------------------------------------------------------------------
 */

void
Tcl_FreeIntRep(
    Tcl_Obj *objPtr)	/* Object whose internal rep should be freed. */
{
    TclFreeIntRep(objPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewBooleanObj --
 *
 *	This function is normally called when not debugging: i.e., when
................................................................................
				 * function; used for debugging. */
    int line)			/* Line number in the source file; used for
				 * debugging. */
{
    register Tcl_Obj *objPtr;

    TclDbNewObj(objPtr, file, line);
    /* Optimized TclInvalidateStringRep() */
    objPtr->bytes = NULL;

    objPtr->internalRep.wideValue = (boolValue != 0);
    objPtr->typePtr = &tclIntType;
    return objPtr;
}

................................................................................
				 * function; used for debugging. */
    int line)			/* Line number in the source file; used for
				 * debugging. */
{
    register Tcl_Obj *objPtr;

    TclDbNewObj(objPtr, file, line);
    /* Optimized TclInvalidateStringRep() */
    objPtr->bytes = NULL;

    objPtr->internalRep.doubleValue = dblValue;
    objPtr->typePtr = &tclDoubleType;
    return objPtr;
}

................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfDouble(
    register Tcl_Obj *objPtr)	/* Double obj with string rep to update. */
{
    char *dst = Tcl_InitStringRep(objPtr, NULL, TCL_DOUBLE_SPACE);

    TclOOM(dst, TCL_DOUBLE_SPACE + 1);

    Tcl_PrintDouble(NULL, objPtr->internalRep.doubleValue, dst);
    (void) Tcl_InitStringRep(objPtr, NULL, strlen(dst));



}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewIntObj --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
UpdateStringOfInt(
    register Tcl_Obj *objPtr)	/* Int object whose string rep to update. */
{
    char *dst = Tcl_InitStringRep( objPtr, NULL, TCL_INTEGER_SPACE);


    TclOOM(dst, TCL_INTEGER_SPACE + 1);
    (void) Tcl_InitStringRep(objPtr, NULL,
	    TclFormatInt(dst, objPtr->internalRep.wideValue));




}

#if !defined(TCL_NO_DEPRECATED) && TCL_MAJOR_VERSION < 9 && !defined(TCL_WIDE_INT_IS_LONG)
static void
UpdateStringOfOldInt(
    register Tcl_Obj *objPtr)	/* Int object whose string rep to update. */
{
    char *dst = Tcl_InitStringRep( objPtr, NULL, TCL_INTEGER_SPACE);


    TclOOM(dst, TCL_INTEGER_SPACE + 1);
    (void) Tcl_InitStringRep(objPtr, NULL,
	    TclFormatInt(dst, objPtr->internalRep.longValue));




}
#endif
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewLongObj --
................................................................................
				 * function; used for debugging. */
    int line)			/* Line number in the source file; used for
				 * debugging. */
{
    register Tcl_Obj *objPtr;

    TclDbNewObj(objPtr, file, line);
    /* Optimized TclInvalidateStringRep */
    objPtr->bytes = NULL;

    objPtr->internalRep.wideValue = longValue;
    objPtr->typePtr = &tclIntType;
    return objPtr;
}

................................................................................

static void
UpdateStringOfBignum(
    Tcl_Obj *objPtr)
{
    mp_int bignumVal;
    int size;

    char *stringVal;

    UNPACK_BIGNUM(objPtr, bignumVal);
    if (MP_OKAY != mp_radix_size(&bignumVal, 10, &size)) {

	Tcl_Panic("radix size failure in UpdateStringOfBignum");
    }
    if (size < 2) {
	/*
	 * mp_radix_size() returns < 2 when more than INT_MAX bytes would be
	 * needed to hold the string rep (because mp_radix_size ignores
	 * integer overflow issues).
................................................................................
	 *
	 * Note that so long as we enforce our bignums to the size that fits
	 * in a packed bignum, this branch will never be taken.
	 */

	Tcl_Panic("UpdateStringOfBignum: string length limit exceeded");
    }


    stringVal = Tcl_InitStringRep(objPtr, NULL, size - 1);

    TclOOM(stringVal, size);
    if (MP_OKAY != mp_toradix_n(&bignumVal, stringVal, 10, size)) {

	Tcl_Panic("conversion failure in UpdateStringOfBignum");
    }


    (void) Tcl_InitStringRep(objPtr, NULL, size - 1);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_NewBignumObj --
 *
................................................................................
	    if (copy || Tcl_IsShared(objPtr)) {
		mp_int temp;

		UNPACK_BIGNUM(objPtr, temp);
		mp_init_copy(bignumValue, &temp);
	    } else {
		UNPACK_BIGNUM(objPtr, *bignumValue);
		/* Optimized TclFreeIntRep */
		objPtr->internalRep.twoPtrValue.ptr1 = NULL;
		objPtr->internalRep.twoPtrValue.ptr2 = NULL;
		objPtr->typePtr = NULL;
		/*
		 * TODO: If objPtr has a string rep, this leaves
		 * it undisturbed.  Not clear that's proper. Pure
		 * bignum values are converted to empty string.
		 */
		if (objPtr->bytes == NULL) {
		    TclInitStringRep(objPtr, NULL, 0);
		}
	    }
	    return TCL_OK;
	}
	if (objPtr->typePtr == &tclIntType) {
	    TclInitBignumFromWideInt(bignumValue,
		    objPtr->internalRep.wideValue);

Changes to generic/tclPathObj.c.

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			    Tcl_Obj *pathPtr);

/*
 * Define the 'path' object type, which Tcl uses to represent file paths
 * internally.
 */

static const Tcl_ObjType tclFsPathType = {
    "path",				/* name */
    FreeFsPathInternalRep,		/* freeIntRepProc */
    DupFsPathInternalRep,		/* dupIntRepProc */
    UpdateStringOfFsPath,		/* updateStringProc */
    SetFsPathFromAny			/* setFromAnyProc */
};

................................................................................
/*
 * struct FsPath --
 *
 * Internal representation of a Tcl_Obj of "path" type. This can be used to
 * represent relative or absolute paths, and has certain optimisations when
 * used to represent paths which are already normalized and absolute.
 *
 * Note that both 'translatedPathPtr' and 'normPathPtr' can be a circular
 * reference to the container Tcl_Obj of this FsPath.
 *
 * There are two cases, with the first being the most common:
 *
 * (i) flags == 0, => Ordinary path.
 *
 * translatedPathPtr contains the translated path (which may be a circular
 * reference to the object itself). If it is NULL then the path is pure
 * normalized (and the normPathPtr will be a circular reference). cwdPtr is
 * null for an absolute path, and non-null for a relative path (unless the cwd
 * has never been set, in which case the cwdPtr may also be null for a
 * relative path).
 *
 * (ii) flags != 0, => Special path, see TclNewFSPathObj
 *
 * Now, this is a path like 'file join $dir $tail' where, cwdPtr is the $dir
 * and normPathPtr is the $tail.
 *
 */
................................................................................
typedef struct FsPath {
    Tcl_Obj *translatedPathPtr; /* Name without any ~user sequences. If this
				 * is NULL, then this is a pure normalized,
				 * absolute path object, in which the parent
				 * Tcl_Obj's string rep is already both
				 * translated and normalized. */
    Tcl_Obj *normPathPtr;	/* Normalized absolute path, without ., .. or
				 * ~user sequences. If the Tcl_Obj containing
				 * this FsPath is already normalized, this may
				 * be a circular reference back to the
				 * container. If that is NOT the case, we have
				 * a refCount on the object. */
    Tcl_Obj *cwdPtr;		/* If null, path is absolute, else this points
				 * to the cwd object used for this path. We
				 * have a refCount on the object. */
    int flags;			/* Flags to describe interpretation - see
				 * below. */
    ClientData nativePathPtr;	/* Native representation of this path, which
				 * is filesystem dependent. */
................................................................................
#define TCLPATH_NEEDNORM 4

/*
 * Define some macros to give us convenient access to path-object specific
 * fields.
 */

#define PATHOBJ(pathPtr) ((FsPath *) (pathPtr)->internalRep.twoPtrValue.ptr1)
#define SETPATHOBJ(pathPtr,fsPathPtr) \


	((pathPtr)->internalRep.twoPtrValue.ptr1 = (void *) (fsPathPtr))



#define PATHFLAGS(pathPtr) (PATHOBJ(pathPtr)->flags)
 
/*
 *---------------------------------------------------------------------------
 *
 * TclFSNormalizeAbsolutePath --
 *
................................................................................

Tcl_Obj *
TclPathPart(
    Tcl_Interp *interp,		/* Used for error reporting */
    Tcl_Obj *pathPtr,		/* Path to take dirname of */
    Tcl_PathPart portion)	/* Requested portion of name */
{
    if (pathPtr->typePtr == &tclFsPathType) {


	FsPath *fsPathPtr = PATHOBJ(pathPtr);

	if (PATHFLAGS(pathPtr) != 0) {
	    switch (portion) {
	    case TCL_PATH_DIRNAME: {
		/*
		 * Check if the joined-on bit has any directory delimiters in
................................................................................
	return Tcl_NewObj();
    }

    assert ( elements > 0 );

    if (elements == 2) {
	Tcl_Obj *elt = objv[0];


	/*
	 * This is a special case where we can be much more efficient, where
	 * we are joining a single relative path onto an object that is
	 * already of path type. The 'TclNewFSPathObj' call below creates an
	 * object which can be normalized more efficiently. Currently we only
	 * use the special case when we have exactly two elements, but we
	 * could expand that in the future.
	 *
	 * Bugfix [a47641a0]. TclNewFSPathObj requires first argument
	 * to be an absolute path. Added a check for that elt is absolute.
	 */

	if ((elt->typePtr == &tclFsPathType)
		&& !((elt->bytes != NULL) && (elt->bytes[0] == '\0'))
                && TclGetPathType(elt, NULL, NULL, NULL) == TCL_PATH_ABSOLUTE) {
            Tcl_Obj *tailObj = objv[1];
	    Tcl_PathType type = TclGetPathType(tailObj, NULL, NULL, NULL);

	    if (type == TCL_PATH_RELATIVE) {
		const char *str;
................................................................................
int
Tcl_FSConvertToPathType(
    Tcl_Interp *interp,		/* Interpreter in which to store error message
				 * (if necessary). */
    Tcl_Obj *pathPtr)		/* Object to convert to a valid, current path
				 * type. */
{


    /*
     * While it is bad practice to examine an object's type directly, this is
     * actually the best thing to do here. The reason is that if we are
     * converting this object to FsPath type for the first time, we don't need
     * to worry whether the 'cwd' has changed. On the other hand, if this
     * object is already of FsPath type, and is a relative path, we do have to
     * worry about the cwd. If the cwd has changed, we must recompute the
     * path.
     */

    if (pathPtr->typePtr == &tclFsPathType) {
	if (TclFSEpochOk(PATHOBJ(pathPtr)->filesystemEpoch)) {
	    return TCL_OK;
	}

	if (pathPtr->bytes == NULL) {
	    UpdateStringOfFsPath(pathPtr);
	}
	FreeFsPathInternalRep(pathPtr);
    }

    return SetFsPathFromAny(interp, pathPtr);

    /*
     * We used to have more complex code here:
     *
     * FsPath *fsPathPtr = PATHOBJ(pathPtr);
     * if (fsPathPtr->cwdPtr == NULL || PATHFLAGS(pathPtr) != 0) {
     *     return TCL_OK;
     * } else {
     *     if (TclFSCwdPointerEquals(&fsPathPtr->cwdPtr)) {
     *         return TCL_OK;
     *     } else {
     *         if (pathPtr->bytes == NULL) {
     *             UpdateStringOfFsPath(pathPtr);
     *         }
     *         FreeFsPathInternalRep(pathPtr);
     *         return Tcl_ConvertToType(interp, pathPtr, &tclFsPathType);
     *     }
     * }
     *
     * But we no longer believe this is necessary.
     */
}
 
/*
 * Helper function for normalization.
 */

static int
................................................................................
    Tcl_IncrRefCount(dirPtr);
    fsPathPtr->nativePathPtr = NULL;
    fsPathPtr->fsPtr = NULL;
    fsPathPtr->filesystemEpoch = 0;

    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = TCLPATH_APPENDED;
    pathPtr->typePtr = &tclFsPathType;
    pathPtr->bytes = NULL;
    pathPtr->length = 0;

    /*
     * Look for path components made up of only "."
     * This is overly conservative analysis to keep simple. It may mark some
     * things as needing more aggressive normalization that don't actually
     * need it. No harm done.
     */
................................................................................
TclFSMakePathRelative(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr,		/* The path we have. */
    Tcl_Obj *cwdPtr)		/* Make it relative to this. */
{
    int cwdLen, len;
    const char *tempStr;


    if (pathPtr->typePtr == &tclFsPathType) {

	FsPath *fsPathPtr = PATHOBJ(pathPtr);

	if (PATHFLAGS(pathPtr) != 0 && fsPathPtr->cwdPtr == cwdPtr) {
	    return fsPathPtr->normPathPtr;
	}
    }

................................................................................

static int
MakePathFromNormalized(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    FsPath *fsPathPtr;


    if (pathPtr->typePtr == &tclFsPathType) {

	return TCL_OK;
    }

    /*
     * Free old representation
     */

    if (pathPtr->typePtr != NULL) {
	if (pathPtr->bytes == NULL) {
	    if (pathPtr->typePtr->updateStringProc == NULL) {
		if (interp != NULL) {
		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
			    "can't find object string representation", -1));
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "PATH", "WTF",
			    NULL);
		}
		return TCL_ERROR;
	    }
	    pathPtr->typePtr->updateStringProc(pathPtr);
	}
	TclFreeIntRep(pathPtr);
    }

    fsPathPtr = ckalloc(sizeof(FsPath));

    /*
     * It's a pure normalized absolute path.
     */

    fsPathPtr->translatedPathPtr = NULL;

    /*
     * Circular reference by design.
     */

    fsPathPtr->normPathPtr = pathPtr;
    fsPathPtr->cwdPtr = NULL;
    fsPathPtr->nativePathPtr = NULL;
    fsPathPtr->fsPtr = NULL;
    /* Remember the epoch under which we decided pathPtr was normalized */
    fsPathPtr->filesystemEpoch = TclFSEpoch();

    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = 0;
    pathPtr->typePtr = &tclFsPathType;

    return TCL_OK;
}
 
/*
 *---------------------------------------------------------------------------
 *
................................................................................
    }

    /*
     * Free old representation; shouldn't normally be any, but best to be
     * safe.
     */

    if (pathPtr->typePtr != NULL) {
	if (pathPtr->bytes == NULL) {
	    if (pathPtr->typePtr->updateStringProc == NULL) {
		return NULL;
	    }
	    pathPtr->typePtr->updateStringProc(pathPtr);
	}
	TclFreeIntRep(pathPtr);
    }

    fsPathPtr = ckalloc(sizeof(FsPath));

    fsPathPtr->translatedPathPtr = NULL;

    /*
     * Circular reference, by design.
     */

    fsPathPtr->normPathPtr = pathPtr;
    fsPathPtr->cwdPtr = NULL;
    fsPathPtr->nativePathPtr = clientData;
    fsPathPtr->fsPtr = fromFilesystem;
    fsPathPtr->filesystemEpoch = TclFSEpoch();

    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = 0;
    pathPtr->typePtr = &tclFsPathType;

    return pathPtr;
}
 
/*
 *---------------------------------------------------------------------------
 *
................................................................................
	     * (cwdPtr) and a tail (normPathPtr), and if we join the
	     * translated version of cwdPtr to normPathPtr, we'll get the
	     * translated result we need, and can store it for future use.
	     */

	    Tcl_Obj *translatedCwdPtr = Tcl_FSGetTranslatedPath(interp,
		    srcFsPathPtr->cwdPtr);


	    if (translatedCwdPtr == NULL) {
		return NULL;
	    }

	    retObj = Tcl_FSJoinToPath(translatedCwdPtr, 1,
		    &srcFsPathPtr->normPathPtr);
	    srcFsPathPtr->translatedPathPtr = retObj;

	    if (translatedCwdPtr->typePtr == &tclFsPathType) {
		srcFsPathPtr->filesystemEpoch
			= PATHOBJ(translatedCwdPtr)->filesystemEpoch;
	    } else {
		srcFsPathPtr->filesystemEpoch = 0;
	    }
	    Tcl_IncrRefCount(retObj);
	    Tcl_DecrRefCount(translatedCwdPtr);
	} else {
	    /*
	     * It is a pure absolute, normalized path object. This is
	     * something like being a 'pure list'. The object's string,
	     * translatedPath and normalizedPath are all identical.
	     */
................................................................................

	pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr);
	dir = Tcl_FSGetNormalizedPath(interp, fsPathPtr->cwdPtr);
	if (dir == NULL) {
	    return NULL;
	}
	/* TODO: Figure out why this is needed. */
	if (pathPtr->bytes == NULL) {
	    UpdateStringOfFsPath(pathPtr);
	}

	TclGetStringFromObj(fsPathPtr->normPathPtr, &tailLen);
	if (tailLen) {
	    copy = AppendPath(dir, fsPathPtr->normPathPtr);
	} else {
	    copy = Tcl_DuplicateObj(dir);
	}
................................................................................
	/* Now we need to construct the new path object. */

	if (pathType == TCL_PATH_RELATIVE) {
	    Tcl_Obj *origDir = fsPathPtr->cwdPtr;

	    /*
	     * NOTE: here we are (dangerously?) assuming that origDir points
	     * to a Tcl_Obj with Tcl_ObjType == &tclFsPathType. The
	     *     pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr);
	     * above that set the pathType value should have established that,
	     * but it's far less clear on what basis we know there's been no
	     * shimmering since then.
	     */

	    FsPath *origDirFsPathPtr = PATHOBJ(origDir);
................................................................................

	    TclDecrRefCount(fsPathPtr->normPathPtr);
	    fsPathPtr->normPathPtr = copy;

	    /*
	     * That's our reference to copy used.
	     */


	    TclDecrRefCount(dir);
	    TclDecrRefCount(origDir);
	} else {
	    TclDecrRefCount(fsPathPtr->cwdPtr);
	    fsPathPtr->cwdPtr = NULL;
	    TclDecrRefCount(fsPathPtr->normPathPtr);
	    fsPathPtr->normPathPtr = copy;

	    /*
	     * That's our reference to copy used.
	     */

	    TclDecrRefCount(dir);
	}
	PATHFLAGS(pathPtr) = 0;
    }

    /*
     * Ensure cwd hasn't changed.
     */

    if (fsPathPtr->cwdPtr != NULL) {
	if (!TclFSCwdPointerEquals(&fsPathPtr->cwdPtr)) {
	    if (pathPtr->bytes == NULL) {
		UpdateStringOfFsPath(pathPtr);
	    }
	    FreeFsPathInternalRep(pathPtr);
	    if (SetFsPathFromAny(interp, pathPtr) != TCL_OK) {
		return NULL;
	    }
	    fsPathPtr = PATHOBJ(pathPtr);
	} else if (fsPathPtr->normPathPtr == NULL) {
	    int cwdLen;
	    Tcl_Obj *copy;
................................................................................
	    TclFSNormalizeToUniquePath(interp, copy, cwdLen-1);
	    fsPathPtr->normPathPtr = copy;
	    Tcl_IncrRefCount(fsPathPtr->normPathPtr);
	}
    }
    if (fsPathPtr->normPathPtr == NULL) {
	Tcl_Obj *useThisCwd = NULL;
	int pureNormalized = 1;

	/*
	 * Since normPathPtr is NULL, but this is a valid path object, we know
	 * that the translatedPathPtr cannot be NULL.
	 */

	Tcl_Obj *absolutePath = fsPathPtr->translatedPathPtr;
................................................................................
	    if (type == TCL_PATH_RELATIVE) {
		useThisCwd = Tcl_FSGetCwd(interp);

		if (useThisCwd == NULL) {
		    return NULL;
		}

		pureNormalized = 0;
		Tcl_DecrRefCount(absolutePath);
		absolutePath = Tcl_FSJoinToPath(useThisCwd, 1, &absolutePath);
		Tcl_IncrRefCount(absolutePath);

		/*
		 * We have a refCount on the cwd.
		 */
................................................................................

		Tcl_DecrRefCount(absolutePath);
		absolutePath = TclWinVolumeRelativeNormalize(interp,
			path, &useThisCwd);
		if (absolutePath == NULL) {
		    return NULL;
		}
		pureNormalized = 0;
#endif /* _WIN32 */
	    }
	}

	/*
	 * Already has refCount incremented.
	 */

	fsPathPtr->normPathPtr = TclFSNormalizeAbsolutePath(interp,
		absolutePath);

	/*
	 * Check if path is pure normalized (this can only be the case if it
	 * is an absolute path).
	 */

	if (pureNormalized) {
	    int normPathLen, pathLen;
	    const char *normPath;

	    path = TclGetStringFromObj(pathPtr, &pathLen);
	    normPath = TclGetStringFromObj(fsPathPtr->normPathPtr, &normPathLen);
	    if ((pathLen == normPathLen) && !memcmp(path, normPath, pathLen)) {
		/*
		 * The path was already normalized. Get rid of the duplicate.
		 */

		TclDecrRefCount(fsPathPtr->normPathPtr);

		/*
		 * We do *not* increment the refCount for this circular
		 * reference.
		 */

		fsPathPtr->normPathPtr = pathPtr;

	    }
	}
	if (useThisCwd != NULL) {
	    /*
	     * We just need to free an object we allocated above for relative
	     * paths (this was returned by Tcl_FSJoinToPath above), and then
	     * of course store the cwd.
	     */

................................................................................

int
TclFSEnsureEpochOk(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem **fsPtrPtr)
{
    FsPath *srcFsPathPtr;


    if (pathPtr->typePtr != &tclFsPathType) {

	return TCL_OK;
    }

    srcFsPathPtr = PATHOBJ(pathPtr);

    /*
     * Check if the filesystem has changed in some way since this object's
................................................................................
     */

    if (!TclFSEpochOk(srcFsPathPtr->filesystemEpoch)) {
	/*
	 * We have to discard the stale representation and recalculate it.
	 */

	if (pathPtr->bytes == NULL) {
	    UpdateStringOfFsPath(pathPtr);
	}
	FreeFsPathInternalRep(pathPtr);
	if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) {
	    return TCL_ERROR;
	}
	srcFsPathPtr = PATHOBJ(pathPtr);
    }

    /*
................................................................................
void
TclFSSetPathDetails(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem *fsPtr,
    ClientData clientData)
{
    FsPath *srcFsPathPtr;


    /*
     * Make sure pathPtr is of the correct type.
     */

    if (pathPtr->typePtr != &tclFsPathType) {
	if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) {
	    return;
	}
    }

    srcFsPathPtr = PATHOBJ(pathPtr);
    srcFsPathPtr->fsPtr = fsPtr;
................................................................................
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    int len;
    FsPath *fsPathPtr;
    Tcl_Obj *transPtr;
    char *name;


    if (pathPtr->typePtr == &tclFsPathType) {

	return TCL_OK;
    }

    /*
     * First step is to translate the filename. This is similar to
     * Tcl_TranslateFilename, but shouldn't convert everything to windows
     * backslashes on that platform. The current implementation of this piece
................................................................................
    /*
     * Now we have a translated filename in 'transPtr'. This will have forward
     * slashes on Windows, and will not contain any ~user sequences.
     */

    fsPathPtr = ckalloc(sizeof(FsPath));

    fsPathPtr->translatedPathPtr = transPtr;
    if (transPtr != pathPtr) {
	Tcl_IncrRefCount(fsPathPtr->translatedPathPtr);
	/* Redo translation when $env(HOME) changes */
	fsPathPtr->filesystemEpoch = TclFSEpoch();
    } else {
	fsPathPtr->filesystemEpoch = 0;
    }


    fsPathPtr->normPathPtr = NULL;
    fsPathPtr->cwdPtr = NULL;
    fsPathPtr->nativePathPtr = NULL;
    fsPathPtr->fsPtr = NULL;

    /*
     * Free old representation before installing our new one.
     */

    TclFreeIntRep(pathPtr);
    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = 0;
    pathPtr->typePtr = &tclFsPathType;
    return TCL_OK;
}
 
static void
FreeFsPathInternalRep(
    Tcl_Obj *pathPtr)		/* Path object with internal rep to free. */
{
................................................................................
	if (fsPathPtr->normPathPtr != pathPtr) {
	    TclDecrRefCount(fsPathPtr->normPathPtr);
	}
	fsPathPtr->normPathPtr = NULL;
    }
    if (fsPathPtr->cwdPtr != NULL) {
	TclDecrRefCount(fsPathPtr->cwdPtr);

    }
    if (fsPathPtr->nativePathPtr != NULL && fsPathPtr->fsPtr != NULL) {
	Tcl_FSFreeInternalRepProc *freeProc =
		fsPathPtr->fsPtr->freeInternalRepProc;

	if (freeProc != NULL) {
	    freeProc(fsPathPtr->nativePathPtr);
	    fsPathPtr->nativePathPtr = NULL;
	}
    }

    ckfree(fsPathPtr);
    pathPtr->typePtr = NULL;
}
 
static void
DupFsPathInternalRep(
    Tcl_Obj *srcPtr,		/* Path obj with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Path obj with internal rep to set. */
{
    FsPath *srcFsPathPtr = PATHOBJ(srcPtr);
    FsPath *copyFsPathPtr = ckalloc(sizeof(FsPath));

    SETPATHOBJ(copyPtr, copyFsPathPtr);

    if (srcFsPathPtr->translatedPathPtr == srcPtr) {
	/* Cycle in src -> make cycle in copy. */
	copyFsPathPtr->translatedPathPtr = copyPtr;
    } else {
	copyFsPathPtr->translatedPathPtr = srcFsPathPtr->translatedPathPtr;
	if (copyFsPathPtr->translatedPathPtr != NULL) {
	    Tcl_IncrRefCount(copyFsPathPtr->translatedPathPtr);
	}
    }

    if (srcFsPathPtr->normPathPtr == srcPtr) {
	/* Cycle in src -> make cycle in copy. */
	copyFsPathPtr->normPathPtr = copyPtr;
    } else {
	copyFsPathPtr->normPathPtr = srcFsPathPtr->normPathPtr;
	if (copyFsPathPtr->normPathPtr != NULL) {
	    Tcl_IncrRefCount(copyFsPathPtr->normPathPtr);
	}
    }

    copyFsPathPtr->cwdPtr = srcFsPathPtr->cwdPtr;
    if (copyFsPathPtr->cwdPtr != NULL) {
	Tcl_IncrRefCount(copyFsPathPtr->cwdPtr);
    }

................................................................................
	    copyFsPathPtr->nativePathPtr = NULL;
	}
    } else {
	copyFsPathPtr->nativePathPtr = NULL;
    }
    copyFsPathPtr->fsPtr = srcFsPathPtr->fsPtr;
    copyFsPathPtr->filesystemEpoch = srcFsPathPtr->filesystemEpoch;

    copyPtr->typePtr = &tclFsPathType;
}
 
/*
 *---------------------------------------------------------------------------
 *
 * UpdateStringOfFsPath --
 *
................................................................................
    Tcl_Obj *copy;

    if (PATHFLAGS(pathPtr) == 0 || fsPathPtr->cwdPtr == NULL) {
	Tcl_Panic("Called UpdateStringOfFsPath with invalid object");
    }

    copy = AppendPath(fsPathPtr->cwdPtr, fsPathPtr->normPathPtr);






    pathPtr->bytes = TclGetStringFromObj(copy, &cwdLen);
    pathPtr->length = cwdLen;
    copy->bytes = &tclEmptyString;
    copy->length = 0;

    TclDecrRefCount(copy);
}
 
/*
 *---------------------------------------------------------------------------
 *
 * TclNativePathInFilesystem --
................................................................................
 */

int
TclNativePathInFilesystem(
    Tcl_Obj *pathPtr,
    ClientData *clientDataPtr)
{


    /*
     * A special case is required to handle the empty path "". This is a valid
     * path (i.e. the user should be able to do 'file exists ""' without
     * throwing an error), but equally the path doesn't exist. Those are the
     * semantics of Tcl (at present anyway), so we have to abide by them here.
     */

    if (pathPtr->typePtr == &tclFsPathType) {
	if (pathPtr->bytes != NULL && pathPtr->bytes[0] == '\0') {
	    /*
	     * We reject the empty path "".
	     */

	    return -1;
	}
................................................................................

	/*
	 * Otherwise there is no way this path can be empty.
	 */
    } else {
	/*
	 * It is somewhat unusual to reach this code path without the object
	 * being of tclFsPathType. However, we do our best to deal with the
	 * situation.
	 */

	int len;

	(void) TclGetStringFromObj(pathPtr, &len);
	if (len == 0) {






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			    Tcl_Obj *pathPtr);

/*
 * Define the 'path' object type, which Tcl uses to represent file paths
 * internally.
 */

static const Tcl_ObjType fsPathType = {
    "path",				/* name */
    FreeFsPathInternalRep,		/* freeIntRepProc */
    DupFsPathInternalRep,		/* dupIntRepProc */
    UpdateStringOfFsPath,		/* updateStringProc */
    SetFsPathFromAny			/* setFromAnyProc */
};

................................................................................
/*
 * struct FsPath --
 *
 * Internal representation of a Tcl_Obj of "path" type. This can be used to
 * represent relative or absolute paths, and has certain optimisations when
 * used to represent paths which are already normalized and absolute.
 *



 * There are two cases, with the first being the most common:
 *
 * (i) flags == 0, => Ordinary path.
 *
 * translatedPathPtr contains the translated path. If it is NULL then the path


 * is pure normalized. cwdPtr is null for an absolute path, and non-null for a
 * relative path (unless the cwd has never been set, in which case the cwdPtr
 * may also be null for a relative path).
 *
 * (ii) flags != 0, => Special path, see TclNewFSPathObj
 *
 * Now, this is a path like 'file join $dir $tail' where, cwdPtr is the $dir
 * and normPathPtr is the $tail.
 *
 */
................................................................................
typedef struct FsPath {
    Tcl_Obj *translatedPathPtr; /* Name without any ~user sequences. If this
				 * is NULL, then this is a pure normalized,
				 * absolute path object, in which the parent
				 * Tcl_Obj's string rep is already both
				 * translated and normalized. */
    Tcl_Obj *normPathPtr;	/* Normalized absolute path, without ., .. or
				 * ~user sequences. */




    Tcl_Obj *cwdPtr;		/* If null, path is absolute, else this points
				 * to the cwd object used for this path. We
				 * have a refCount on the object. */
    int flags;			/* Flags to describe interpretation - see
				 * below. */
    ClientData nativePathPtr;	/* Native representation of this path, which
				 * is filesystem dependent. */
................................................................................
#define TCLPATH_NEEDNORM 4

/*
 * Define some macros to give us convenient access to path-object specific
 * fields.
 */

#define PATHOBJ(pathPtr) ((FsPath *) (Tcl_FetchIntRep((pathPtr), &fsPathType)->twoPtrValue.ptr1))
#define SETPATHOBJ(pathPtr,fsPathPtr) \
	do {							\
		Tcl_ObjIntRep ir;				\
		ir.twoPtrValue.ptr1 = (void *) (fsPathPtr);	\
		ir.twoPtrValue.ptr2 = NULL;			\
		Tcl_StoreIntRep((pathPtr), &fsPathType, &ir);	\
	} while (0)
#define PATHFLAGS(pathPtr) (PATHOBJ(pathPtr)->flags)
 
/*
 *---------------------------------------------------------------------------
 *
 * TclFSNormalizeAbsolutePath --
 *
................................................................................

Tcl_Obj *
TclPathPart(
    Tcl_Interp *interp,		/* Used for error reporting */
    Tcl_Obj *pathPtr,		/* Path to take dirname of */
    Tcl_PathPart portion)	/* Requested portion of name */
{
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);

    if (irPtr) {
	FsPath *fsPathPtr = PATHOBJ(pathPtr);

	if (PATHFLAGS(pathPtr) != 0) {
	    switch (portion) {
	    case TCL_PATH_DIRNAME: {
		/*
		 * Check if the joined-on bit has any directory delimiters in
................................................................................
	return Tcl_NewObj();
    }

    assert ( elements > 0 );

    if (elements == 2) {
	Tcl_Obj *elt = objv[0];
	Tcl_ObjIntRep *eltIr = Tcl_FetchIntRep(elt, &fsPathType);

	/*
	 * This is a special case where we can be much more efficient, where
	 * we are joining a single relative path onto an object that is
	 * already of path type. The 'TclNewFSPathObj' call below creates an
	 * object which can be normalized more efficiently. Currently we only
	 * use the special case when we have exactly two elements, but we
	 * could expand that in the future.
	 *
	 * Bugfix [a47641a0]. TclNewFSPathObj requires first argument
	 * to be an absolute path. Added a check for that elt is absolute.
	 */

	if ((eltIr)
		&& !((elt->bytes != NULL) && (elt->bytes[0] == '\0'))
                && TclGetPathType(elt, NULL, NULL, NULL) == TCL_PATH_ABSOLUTE) {
            Tcl_Obj *tailObj = objv[1];
	    Tcl_PathType type = TclGetPathType(tailObj, NULL, NULL, NULL);

	    if (type == TCL_PATH_RELATIVE) {
		const char *str;
................................................................................
int
Tcl_FSConvertToPathType(
    Tcl_Interp *interp,		/* Interpreter in which to store error message
				 * (if necessary). */
    Tcl_Obj *pathPtr)		/* Object to convert to a valid, current path
				 * type. */
{
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);

    /*
     * While it is bad practice to examine an object's type directly, this is
     * actually the best thing to do here. The reason is that if we are
     * converting this object to FsPath type for the first time, we don't need
     * to worry whether the 'cwd' has changed. On the other hand, if this
     * object is already of FsPath type, and is a relative path, we do have to
     * worry about the cwd. If the cwd has changed, we must recompute the
     * path.
     */

    if (irPtr) {
	if (TclFSEpochOk(PATHOBJ(pathPtr)->filesystemEpoch)) {
	    return TCL_OK;
	}

	TclGetString(pathPtr);
	Tcl_StoreIntRep(pathPtr, &fsPathType, NULL);
    }



    return SetFsPathFromAny(interp, pathPtr);





















}
 
/*
 * Helper function for normalization.
 */

static int
................................................................................
    Tcl_IncrRefCount(dirPtr);
    fsPathPtr->nativePathPtr = NULL;
    fsPathPtr->fsPtr = NULL;
    fsPathPtr->filesystemEpoch = 0;

    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = TCLPATH_APPENDED;
    TclInvalidateStringRep(pathPtr);



    /*
     * Look for path components made up of only "."
     * This is overly conservative analysis to keep simple. It may mark some
     * things as needing more aggressive normalization that don't actually
     * need it. No harm done.
     */
................................................................................
TclFSMakePathRelative(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr,		/* The path we have. */
    Tcl_Obj *cwdPtr)		/* Make it relative to this. */
{
    int cwdLen, len;
    const char *tempStr;
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);


    if (irPtr) {
	FsPath *fsPathPtr = PATHOBJ(pathPtr);

	if (PATHFLAGS(pathPtr) != 0 && fsPathPtr->cwdPtr == cwdPtr) {
	    return fsPathPtr->normPathPtr;
	}
    }

................................................................................

static int
MakePathFromNormalized(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    FsPath *fsPathPtr;
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);


    if (irPtr) {
	return TCL_OK;
    }





















    fsPathPtr = ckalloc(sizeof(FsPath));

    /*
     * It's a pure normalized absolute path.
     */

    fsPathPtr->translatedPathPtr = NULL;





    Tcl_IncrRefCount(fsPathPtr->normPathPtr = Tcl_DuplicateObj(pathPtr));
    fsPathPtr->cwdPtr = NULL;
    fsPathPtr->nativePathPtr = NULL;
    fsPathPtr->fsPtr = NULL;
    /* Remember the epoch under which we decided pathPtr was normalized */
    fsPathPtr->filesystemEpoch = TclFSEpoch();

    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = 0;


    return TCL_OK;
}
 
/*
 *---------------------------------------------------------------------------
 *
................................................................................
    }

    /*
     * Free old representation; shouldn't normally be any, but best to be
     * safe.
     */








    Tcl_StoreIntRep(pathPtr, &fsPathType, NULL);


    fsPathPtr = ckalloc(sizeof(FsPath));

    fsPathPtr->translatedPathPtr = NULL;





    Tcl_IncrRefCount(fsPathPtr->normPathPtr = Tcl_DuplicateObj(pathPtr));
    fsPathPtr->cwdPtr = NULL;
    fsPathPtr->nativePathPtr = clientData;
    fsPathPtr->fsPtr = fromFilesystem;
    fsPathPtr->filesystemEpoch = TclFSEpoch();

    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = 0;


    return pathPtr;
}
 
/*
 *---------------------------------------------------------------------------
 *
................................................................................
	     * (cwdPtr) and a tail (normPathPtr), and if we join the
	     * translated version of cwdPtr to normPathPtr, we'll get the
	     * translated result we need, and can store it for future use.
	     */

	    Tcl_Obj *translatedCwdPtr = Tcl_FSGetTranslatedPath(interp,
		    srcFsPathPtr->cwdPtr);
	    Tcl_ObjIntRep *translatedCwdIrPtr;

	    if (translatedCwdPtr == NULL) {
		return NULL;
	    }

	    retObj = Tcl_FSJoinToPath(translatedCwdPtr, 1,
		    &srcFsPathPtr->normPathPtr);
	    Tcl_IncrRefCount(srcFsPathPtr->translatedPathPtr = retObj);
	    translatedCwdIrPtr = Tcl_FetchIntRep(translatedCwdPtr, &fsPathType);
	    if (translatedCwdIrPtr) {
		srcFsPathPtr->filesystemEpoch
			= PATHOBJ(translatedCwdPtr)->filesystemEpoch;
	    } else {
		srcFsPathPtr->filesystemEpoch = 0;
	    }

	    Tcl_DecrRefCount(translatedCwdPtr);
	} else {
	    /*
	     * It is a pure absolute, normalized path object. This is
	     * something like being a 'pure list'. The object's string,
	     * translatedPath and normalizedPath are all identical.
	     */
................................................................................

	pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr);
	dir = Tcl_FSGetNormalizedPath(interp, fsPathPtr->cwdPtr);
	if (dir == NULL) {
	    return NULL;
	}
	/* TODO: Figure out why this is needed. */

	TclGetString(pathPtr);


	TclGetStringFromObj(fsPathPtr->normPathPtr, &tailLen);
	if (tailLen) {
	    copy = AppendPath(dir, fsPathPtr->normPathPtr);
	} else {
	    copy = Tcl_DuplicateObj(dir);
	}
................................................................................
	/* Now we need to construct the new path object. */

	if (pathType == TCL_PATH_RELATIVE) {
	    Tcl_Obj *origDir = fsPathPtr->cwdPtr;

	    /*
	     * NOTE: here we are (dangerously?) assuming that origDir points
	     * to a Tcl_Obj with Tcl_ObjType == &fsPathType. The
	     *     pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr);
	     * above that set the pathType value should have established that,
	     * but it's far less clear on what basis we know there's been no
	     * shimmering since then.
	     */

	    FsPath *origDirFsPathPtr = PATHOBJ(origDir);
................................................................................

	    TclDecrRefCount(fsPathPtr->normPathPtr);
	    fsPathPtr->normPathPtr = copy;

	    /*
	     * That's our reference to copy used.
	     */
	    copy = NULL;

	    TclDecrRefCount(dir);
	    TclDecrRefCount(origDir);
	} else {
	    TclDecrRefCount(fsPathPtr->cwdPtr);
	    fsPathPtr->cwdPtr = NULL;
	    TclDecrRefCount(fsPathPtr->normPathPtr);
	    fsPathPtr->normPathPtr = copy;

	    /*
	     * That's our reference to copy used.
	     */
	    copy = NULL;
	    TclDecrRefCount(dir);
	}
	PATHFLAGS(pathPtr) = 0;
    }

    /*
     * Ensure cwd hasn't changed.
     */

    if (fsPathPtr->cwdPtr != NULL) {
	if (!TclFSCwdPointerEquals(&fsPathPtr->cwdPtr)) {
	    TclGetString(pathPtr);
	    Tcl_StoreIntRep(pathPtr, &fsPathType, NULL);


	    if (SetFsPathFromAny(interp, pathPtr) != TCL_OK) {
		return NULL;
	    }
	    fsPathPtr = PATHOBJ(pathPtr);
	} else if (fsPathPtr->normPathPtr == NULL) {
	    int cwdLen;
	    Tcl_Obj *copy;
................................................................................
	    TclFSNormalizeToUniquePath(interp, copy, cwdLen-1);
	    fsPathPtr->normPathPtr = copy;
	    Tcl_IncrRefCount(fsPathPtr->normPathPtr);
	}
    }
    if (fsPathPtr->normPathPtr == NULL) {
	Tcl_Obj *useThisCwd = NULL;


	/*
	 * Since normPathPtr is NULL, but this is a valid path object, we know
	 * that the translatedPathPtr cannot be NULL.
	 */

	Tcl_Obj *absolutePath = fsPathPtr->translatedPathPtr;
................................................................................
	    if (type == TCL_PATH_RELATIVE) {
		useThisCwd = Tcl_FSGetCwd(interp);

		if (useThisCwd == NULL) {
		    return NULL;
		}


		Tcl_DecrRefCount(absolutePath);
		absolutePath = Tcl_FSJoinToPath(useThisCwd, 1, &absolutePath);
		Tcl_IncrRefCount(absolutePath);

		/*
		 * We have a refCount on the cwd.
		 */
................................................................................

		Tcl_DecrRefCount(absolutePath);
		absolutePath = TclWinVolumeRelativeNormalize(interp,
			path, &useThisCwd);
		if (absolutePath == NULL) {
		    return NULL;
		}

#endif /* _WIN32 */
	    }
	}

	/*
	 * Already has refCount incremented.
	 */

	if (fsPathPtr->normPathPtr) {


















	    Tcl_DecrRefCount(fsPathPtr->normPathPtr);
	}





	fsPathPtr->normPathPtr = TclFSNormalizeAbsolutePath(interp,
		absolutePath);


	if (useThisCwd != NULL) {
	    /*
	     * We just need to free an object we allocated above for relative
	     * paths (this was returned by Tcl_FSJoinToPath above), and then
	     * of course store the cwd.
	     */

................................................................................

int
TclFSEnsureEpochOk(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem **fsPtrPtr)
{
    FsPath *srcFsPathPtr;
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);


    if (irPtr == NULL) {
	return TCL_OK;
    }

    srcFsPathPtr = PATHOBJ(pathPtr);

    /*
     * Check if the filesystem has changed in some way since this object's
................................................................................
     */

    if (!TclFSEpochOk(srcFsPathPtr->filesystemEpoch)) {
	/*
	 * We have to discard the stale representation and recalculate it.
	 */

	TclGetString(pathPtr);
	Tcl_StoreIntRep(pathPtr, &fsPathType, NULL);


	if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) {
	    return TCL_ERROR;
	}
	srcFsPathPtr = PATHOBJ(pathPtr);
    }

    /*
................................................................................
void
TclFSSetPathDetails(
    Tcl_Obj *pathPtr,
    const Tcl_Filesystem *fsPtr,
    ClientData clientData)
{
    FsPath *srcFsPathPtr;
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);;

    /*
     * Make sure pathPtr is of the correct type.
     */

    if (irPtr == NULL) {
	if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) {
	    return;
	}
    }

    srcFsPathPtr = PATHOBJ(pathPtr);
    srcFsPathPtr->fsPtr = fsPtr;
................................................................................
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    Tcl_Obj *pathPtr)		/* The object to convert. */
{
    int len;
    FsPath *fsPathPtr;
    Tcl_Obj *transPtr;
    char *name;
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);


    if (irPtr) {
	return TCL_OK;
    }

    /*
     * First step is to translate the filename. This is similar to
     * Tcl_TranslateFilename, but shouldn't convert everything to windows
     * backslashes on that platform. The current implementation of this piece
................................................................................
    /*
     * Now we have a translated filename in 'transPtr'. This will have forward
     * slashes on Windows, and will not contain any ~user sequences.
     */

    fsPathPtr = ckalloc(sizeof(FsPath));

    if (transPtr == pathPtr) {
        transPtr = Tcl_DuplicateObj(pathPtr);


        fsPathPtr->filesystemEpoch = 0;
    } else {
        fsPathPtr->filesystemEpoch = TclFSEpoch();
    }
    Tcl_IncrRefCount(transPtr);
    fsPathPtr->translatedPathPtr = transPtr;
    fsPathPtr->normPathPtr = NULL;
    fsPathPtr->cwdPtr = NULL;
    fsPathPtr->nativePathPtr = NULL;
    fsPathPtr->fsPtr = NULL;






    SETPATHOBJ(pathPtr, fsPathPtr);
    PATHFLAGS(pathPtr) = 0;

    return TCL_OK;
}
 
static void
FreeFsPathInternalRep(
    Tcl_Obj *pathPtr)		/* Path object with internal rep to free. */
{
................................................................................
	if (fsPathPtr->normPathPtr != pathPtr) {
	    TclDecrRefCount(fsPathPtr->normPathPtr);
	}
	fsPathPtr->normPathPtr = NULL;
    }
    if (fsPathPtr->cwdPtr != NULL) {
	TclDecrRefCount(fsPathPtr->cwdPtr);
	fsPathPtr->cwdPtr = NULL;
    }
    if (fsPathPtr->nativePathPtr != NULL && fsPathPtr->fsPtr != NULL) {
	Tcl_FSFreeInternalRepProc *freeProc =
		fsPathPtr->fsPtr->freeInternalRepProc;

	if (freeProc != NULL) {
	    freeProc(fsPathPtr->nativePathPtr);
	    fsPathPtr->nativePathPtr = NULL;
	}
    }

    ckfree(fsPathPtr);

}
 
static void
DupFsPathInternalRep(
    Tcl_Obj *srcPtr,		/* Path obj with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Path obj with internal rep to set. */
{
    FsPath *srcFsPathPtr = PATHOBJ(srcPtr);
    FsPath *copyFsPathPtr = ckalloc(sizeof(FsPath));

    SETPATHOBJ(copyPtr, copyFsPathPtr);





    copyFsPathPtr->translatedPathPtr = srcFsPathPtr->translatedPathPtr;
    if (copyFsPathPtr->translatedPathPtr != NULL) {
	Tcl_IncrRefCount(copyFsPathPtr->translatedPathPtr);
    }






    copyFsPathPtr->normPathPtr = srcFsPathPtr->normPathPtr;
    if (copyFsPathPtr->normPathPtr != NULL) {
	Tcl_IncrRefCount(copyFsPathPtr->normPathPtr);

    }

    copyFsPathPtr->cwdPtr = srcFsPathPtr->cwdPtr;
    if (copyFsPathPtr->cwdPtr != NULL) {
	Tcl_IncrRefCount(copyFsPathPtr->cwdPtr);
    }

................................................................................
	    copyFsPathPtr->nativePathPtr = NULL;
	}
    } else {
	copyFsPathPtr->nativePathPtr = NULL;
    }
    copyFsPathPtr->fsPtr = srcFsPathPtr->fsPtr;
    copyFsPathPtr->filesystemEpoch = srcFsPathPtr->filesystemEpoch;


}
 
/*
 *---------------------------------------------------------------------------
 *
 * UpdateStringOfFsPath --
 *
................................................................................
    Tcl_Obj *copy;

    if (PATHFLAGS(pathPtr) == 0 || fsPathPtr->cwdPtr == NULL) {
	Tcl_Panic("Called UpdateStringOfFsPath with invalid object");
    }

    copy = AppendPath(fsPathPtr->cwdPtr, fsPathPtr->normPathPtr);
    if (Tcl_IsShared(copy)) {
	copy = Tcl_DuplicateObj(copy);
    }

    Tcl_IncrRefCount(copy);
    /* Steal copy's string rep */
    pathPtr->bytes = TclGetStringFromObj(copy, &cwdLen);
    pathPtr->length = cwdLen;


    TclInitStringRep(copy, NULL, 0);
    TclDecrRefCount(copy);
}
 
/*
 *---------------------------------------------------------------------------
 *
 * TclNativePathInFilesystem --
................................................................................
 */

int
TclNativePathInFilesystem(
    Tcl_Obj *pathPtr,
    ClientData *clientDataPtr)
{
    Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(pathPtr, &fsPathType);

    /*
     * A special case is required to handle the empty path "". This is a valid
     * path (i.e. the user should be able to do 'file exists ""' without
     * throwing an error), but equally the path doesn't exist. Those are the
     * semantics of Tcl (at present anyway), so we have to abide by them here.
     */

    if (irPtr) {
	if (pathPtr->bytes != NULL && pathPtr->bytes[0] == '\0') {
	    /*
	     * We reject the empty path "".
	     */

	    return -1;
	}
................................................................................

	/*
	 * Otherwise there is no way this path can be empty.
	 */
    } else {
	/*
	 * It is somewhat unusual to reach this code path without the object
	 * being of fsPathType. However, we do our best to deal with the
	 * situation.
	 */

	int len;

	(void) TclGetStringFromObj(pathPtr, &len);
	if (len == 0) {

Changes to generic/tclProc.c.

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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclCompile.h"


/*
 * Variables that are part of the [apply] command implementation and which
 * have to be passed to the other side of the NRE call.
 */

typedef struct {
................................................................................
    NULL,			/* UpdateString function; Tcl_GetString and
				 * Tcl_GetStringFromObj should panic
				 * instead. */
    NULL			/* SetFromAny function; Tcl_ConvertToType
				 * should panic instead. */
};

















/*
 * The [upvar]/[uplevel] level reference type. Uses the longValue field
 * to remember the integer value of a parsed #<integer> format.
 *
 * Uses the default behaviour throughout, and never disposes of the string
 * rep; it's just a cache type.
 */
................................................................................
 * representation.
 *
 * Internally, ptr1 is a pointer to a Proc instance that is not bound to a
 * command name, and ptr2 is a pointer to the namespace that the Proc instance
 * will execute within. IF YOU CHANGE THIS, CHECK IN tclDisassemble.c TOO.
 */

const Tcl_ObjType tclLambdaType = {
    "lambdaExpr",		/* name */
    FreeLambdaInternalRep,	/* freeIntRepProc */
    DupLambdaInternalRep,	/* dupIntRepProc */
    NULL,			/* updateStringProc */
    SetLambdaFromAny		/* setFromAnyProc */
};


















 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_ProcObjCmd --
 *
 *	This object-based function is invoked to process the "proc" Tcl
................................................................................
     *	   seem to make a lot of sense to verify the number of arguments we
     *	   are about to ignore ...
     *	 - could be enhanced to handle also non-empty bodies that contain only
     *	   comments; however, parsing the body will slow down the compilation
     *	   of all procs whose argument list is just _args_
     */

    if (objv[3]->typePtr == &tclProcBodyType) {
	goto done;
    }

    procArgs = TclGetString(objv[2]);

    while (*procArgs == ' ') {
	procArgs++;
................................................................................
    const char *procName,	/* Unqualified name of this proc. */
    Tcl_Obj *argsPtr,		/* Description of arguments. */
    Tcl_Obj *bodyPtr,		/* Command body. */
    Proc **procPtrPtr)		/* Returns: pointer to proc data. */
{
    Interp *iPtr = (Interp *) interp;

    register Proc *procPtr;
    int i, result, numArgs, plen;
    const char *bytes, *argname, *argnamei;
    char argnamelast;
    register CompiledLocal *localPtr = NULL;
    Tcl_Obj *defPtr, *errorObj, **argArray;
    int precompiled = 0;

    if (bodyPtr->typePtr == &tclProcBodyType) {

	/*
	 * Because the body is a TclProProcBody, the actual body is already
	 * compiled, and it is not shared with anyone else, so it's OK not to
	 * unshare it (as a matter of fact, it is bad to unshare it, because
	 * there may be no source code).
	 *
	 * We don't create and initialize a Proc structure for the procedure;
	 * rather, we use what is in the body object. We increment the ref
	 * count of the Proc struct since the command (soon to be created)
	 * will be holding a reference to it.
	 */

	procPtr = bodyPtr->internalRep.twoPtrValue.ptr1;
	procPtr->iPtr = iPtr;
	procPtr->refCount++;
	precompiled = 1;
    } else {
	/*
	 * If the procedure's body object is shared because its string value
	 * is identical to, e.g., the body of another procedure, we must
................................................................................
    Tcl_Interp *interp,		/* Interpreter in which to find frame. */
    Tcl_Obj *objPtr,		/* Object describing frame. */
    CallFrame **framePtrPtr)	/* Store pointer to frame here (or NULL if
				 * global frame indicated). */
{
    register Interp *iPtr = (Interp *) interp;
    int curLevel, level, result;

    const char *name = NULL;
    Tcl_WideInt w;

    /*
     * Parse object to figure out which level number to go to.
     */

................................................................................
	Tcl_GetWideIntFromObj(NULL, objPtr, &w);
	if (w < 0 || w > INT_MAX || curLevel > w + INT_MAX) {
	    result = -1;
	} else {
	    level = curLevel - level;
	    result = 1;
	}
    } else if (objPtr->typePtr == &levelReferenceType) {
	level = (int) objPtr->internalRep.wideValue;
	result = 1;
    } else {
	name = TclGetString(objPtr);
	if (name[0] == '#') {
	    if (TCL_OK == Tcl_GetInt(NULL, name+1, &level)) {
		if (level < 0 || (level > 0 && name[1] == '-')) {
		    result = -1;
		} else {
		    TclFreeIntRep(objPtr);
		    objPtr->typePtr = &levelReferenceType;

		    objPtr->internalRep.wideValue = level;

		    result = 1;
		}
	    } else {
		result = -1;
	    }
	} else if (TclGetWideBitsFromObj(interp, objPtr, &w) == TCL_OK) {
	    /*
................................................................................
    Namespace *nsPtr)		/* Pointer to current namespace. */
{
    Var *varPtr = framePtr->compiledLocals;
    Tcl_Obj *bodyPtr;
    ByteCode *codePtr;

    bodyPtr = framePtr->procPtr->bodyPtr;
    if (bodyPtr->typePtr != &tclByteCodeType) {

	Tcl_Panic("body object for proc attached to frame is not a byte code type");
    }
    codePtr = bodyPtr->internalRep.twoPtrValue.ptr1;

    if (framePtr->numCompiledLocals) {
	if (!codePtr->localCachePtr) {
	    InitLocalCache(framePtr->procPtr) ;
	}
	framePtr->localCachePtr = codePtr->localCachePtr;
	framePtr->localCachePtr->refCount++;
................................................................................
}
 
static void
InitLocalCache(
    Proc *procPtr)
{
    Interp *iPtr = procPtr->iPtr;
    ByteCode *codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
    int localCt = procPtr->numCompiledLocals;
    int numArgs = procPtr->numArgs, i = 0;

    Tcl_Obj **namePtr;
    Var *varPtr;
    LocalCache *localCachePtr;
    CompiledLocal *localPtr;
    int new;



    /*
     * Cache the names and initial values of local variables; store the
     * cache in both the framePtr for this execution and in the codePtr
     * for future calls.
     */

................................................................................
				 * invoked. */
    Tcl_Obj *procNameObj,	/* Procedure name for error reporting. */
    int skip)			/* Number of initial arguments to be skipped,
				 * i.e., words in the "command name". */
{
    CallFrame *framePtr = ((Interp *)interp)->varFramePtr;
    register Proc *procPtr = framePtr->procPtr;
    ByteCode *codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
    register Var *varPtr, *defPtr;
    int localCt = procPtr->numCompiledLocals, numArgs, argCt, i, imax;
    Tcl_Obj *const *argObjs;



    /*
     * Make sure that the local cache of variable names and initial values has
     * been initialised properly .
     */

    if (localCt) {
................................................................................
     * If necessary (i.e. if we haven't got a suitable compilation already
     * cached) compile the procedure's body. The compiler will allocate frame
     * slots for the procedure's non-argument local variables. Note that
     * compiling the body might increase procPtr->numCompiledLocals if new
     * local variables are found while compiling.
     */

    if (procPtr->bodyPtr->typePtr == &tclByteCodeType) {

	Interp *iPtr = (Interp *) interp;

	/*
	 * When we've got bytecode, this is the check for validity. That is,
	 * the bytecode must be for the right interpreter (no cross-leaks!),
	 * the code must be from the current epoch (so subcommand compilation
	 * is up-to-date), the namespace must match (so variable handling
	 * is right) and the resolverEpoch must match (so that new shadowed
	 * commands and/or resolver changes are considered).
	 */

	codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;
	if (((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != nsPtr)
		|| (codePtr->nsEpoch != nsPtr->resolverEpoch)) {
	    goto doCompilation;
	}
    } else {
................................................................................
#endif /* USE_DTRACE */

    /*
     * Invoke the commands in the procedure's body.
     */

    procPtr->refCount++;
    codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1;

    TclNRAddCallback(interp, InterpProcNR2, procNameObj, errorProc,
	    NULL, NULL);
    return TclNRExecuteByteCode(interp, codePtr);
}

static int
................................................................................
				 * the context of this procedure.) */
    Namespace *nsPtr,		/* Namespace containing procedure. */
    const char *description,	/* string describing this body of code. */
    const char *procName)	/* Name of this procedure. */
{
    Interp *iPtr = (Interp *) interp;
    Tcl_CallFrame *framePtr;
    ByteCode *codePtr = bodyPtr->internalRep.twoPtrValue.ptr1;



    /*
     * If necessary, compile the procedure's body. The compiler will allocate
     * frame slots for the procedure's non-argument local variables. If the
     * ByteCode already exists, make sure it hasn't been invalidated by
     * someone redefining a core command (this might make the compiled code
     * wrong). Also, if the code was compiled in/for a different interpreter,
................................................................................
     * procPtr->numCompiledLocals if new local variables are found while
     * compiling.
     *
     * Precompiled procedure bodies, however, are immutable and therefore they
     * are not recompiled, even if things have changed.
     */

    if (bodyPtr->typePtr == &tclByteCodeType) {
	if (((Interp *) *codePtr->interpHandle == iPtr)
		&& (codePtr->compileEpoch == iPtr->compileEpoch)
		&& (codePtr->nsPtr == nsPtr)
		&& (codePtr->nsEpoch == nsPtr->resolverEpoch)) {
	    return TCL_OK;
	}

................................................................................
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "PROC",
			"CROSSINTERPBYTECODE", NULL);
		return TCL_ERROR;
	    }
	    codePtr->compileEpoch = iPtr->compileEpoch;
	    codePtr->nsPtr = nsPtr;
	} else {
	    TclFreeIntRep(bodyPtr);

	}
    }

    if (bodyPtr->typePtr != &tclByteCodeType) {
	Tcl_HashEntry *hePtr;

#ifdef TCL_COMPILE_DEBUG
	if (tclTraceCompile >= 1) {
	    /*
	     * Display a line summarizing the top level command we are about
	     * to compile.
................................................................................

    if (!procPtr) {
	return NULL;
    }

    TclNewObj(objPtr);
    if (objPtr) {
	objPtr->typePtr = &tclProcBodyType;
	objPtr->internalRep.twoPtrValue.ptr1 = procPtr;

	procPtr->refCount++;
    }

    return objPtr;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
 */

static void
ProcBodyDup(
    Tcl_Obj *srcPtr,		/* Object to copy. */
    Tcl_Obj *dupPtr)		/* Target object for the duplication. */
{
    Proc *procPtr = srcPtr->internalRep.twoPtrValue.ptr1;


    dupPtr->typePtr = &tclProcBodyType;
    dupPtr->internalRep.twoPtrValue.ptr1 = procPtr;
    procPtr->refCount++;
}
 
/*
 *----------------------------------------------------------------------
 *
 * ProcBodyFree --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
ProcBodyFree(
    Tcl_Obj *objPtr)		/* The object to clean up. */
{
    Proc *procPtr = objPtr->internalRep.twoPtrValue.ptr1;



    if (procPtr->refCount-- <= 1) {
	TclProcCleanupProc(procPtr);
    }
}
 
/*
................................................................................
 */

static void
DupLambdaInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. */
{
    Proc *procPtr = srcPtr->internalRep.twoPtrValue.ptr1;
    Tcl_Obj *nsObjPtr = srcPtr->internalRep.twoPtrValue.ptr2;

    copyPtr->internalRep.twoPtrValue.ptr1 = procPtr;
    copyPtr->internalRep.twoPtrValue.ptr2 = nsObjPtr;

    procPtr->refCount++;
    Tcl_IncrRefCount(nsObjPtr);

    copyPtr->typePtr = &tclLambdaType;
}

static void
FreeLambdaInternalRep(
    register Tcl_Obj *objPtr)	/* CmdName object with internal representation
				 * to free. */
{
    Proc *procPtr = objPtr->internalRep.twoPtrValue.ptr1;
    Tcl_Obj *nsObjPtr = objPtr->internalRep.twoPtrValue.ptr2;




    if (procPtr->refCount-- <= 1) {
	TclProcCleanupProc(procPtr);
    }
    TclDecrRefCount(nsObjPtr);
    objPtr->typePtr = NULL;
}

static int
SetLambdaFromAny(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    register Tcl_Obj *objPtr)	/* The object to convert. */
{
................................................................................

    if (interp == NULL) {
	return TCL_ERROR;
    }

    /*
     * Convert objPtr to list type first; if it cannot be converted, or if its
     * length is not 2, then it cannot be converted to tclLambdaType.
     */

    result = TclListObjGetElements(NULL, objPtr, &objc, &objv);
    if ((result != TCL_OK) || ((objc != 2) && (objc != 3))) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't interpret \"%s\" as a lambda expression",
		Tcl_GetString(objPtr)));
................................................................................
	    TclNewLiteralStringObj(nsObjPtr, "::");
	    Tcl_AppendObjToObj(nsObjPtr, objv[2]);
	} else {
	    nsObjPtr = objv[2];
	}
    }

    Tcl_IncrRefCount(nsObjPtr);

    /*
     * Free the list internalrep of objPtr - this will free argsPtr, but
     * bodyPtr retains a reference from the Proc structure. Then finish the
     * conversion to tclLambdaType.
     */

    TclFreeIntRep(objPtr);


    objPtr->internalRep.twoPtrValue.ptr1 = procPtr;
    objPtr->internalRep.twoPtrValue.ptr2 = nsObjPtr;

    objPtr->typePtr = &tclLambdaType;












    return TCL_OK;
}











 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_ApplyObjCmd --
 *
 *	This object-based function is invoked to process the "apply" Tcl
................................................................................
int
TclNRApplyObjCmd(
    ClientData dummy,		/* Not used. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    Interp *iPtr = (Interp *) interp;
    Proc *procPtr = NULL;
    Tcl_Obj *lambdaPtr, *nsObjPtr;
    int result;
    Tcl_Namespace *nsPtr;
    ApplyExtraData *extraPtr;

    if (objc < 2) {
................................................................................

    /*
     * Set lambdaPtr, convert it to tclLambdaType in the current interp if
     * necessary.
     */

    lambdaPtr = objv[1];
    if (lambdaPtr->typePtr == &tclLambdaType) {
	procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1;
    }

    if ((procPtr == NULL) || (procPtr->iPtr != iPtr)) {
	result = SetLambdaFromAny(interp, lambdaPtr);
	if (result != TCL_OK) {
	    return result;
	}
	procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1;
    }

    /*
     * Find the namespace where this lambda should run, and push a call frame
     * for that namespace. Note that TclObjInterpProc() will pop it.
     */

    nsObjPtr = lambdaPtr->internalRep.twoPtrValue.ptr2;
    result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
    if (result != TCL_OK) {
	return TCL_ERROR;
    }

    extraPtr = TclStackAlloc(interp, sizeof(ApplyExtraData));
    memset(&extraPtr->cmd, 0, sizeof(Command));






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 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclCompile.h"
#include <assert.h>

/*
 * Variables that are part of the [apply] command implementation and which
 * have to be passed to the other side of the NRE call.
 */

typedef struct {
................................................................................
    NULL,			/* UpdateString function; Tcl_GetString and
				 * Tcl_GetStringFromObj should panic
				 * instead. */
    NULL			/* SetFromAny function; Tcl_ConvertToType
				 * should panic instead. */
};

#define ProcSetIntRep(objPtr, procPtr)					\
    do {								\
	Tcl_ObjIntRep ir;						\
	(procPtr)->refCount++;						\
	ir.twoPtrValue.ptr1 = (procPtr);				\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), &tclProcBodyType, &ir);		\
    } while (0)

#define ProcGetIntRep(objPtr, procPtr)					\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &tclProcBodyType);		\
	(procPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

/*
 * The [upvar]/[uplevel] level reference type. Uses the longValue field
 * to remember the integer value of a parsed #<integer> format.
 *
 * Uses the default behaviour throughout, and never disposes of the string
 * rep; it's just a cache type.
 */
................................................................................
 * representation.
 *
 * Internally, ptr1 is a pointer to a Proc instance that is not bound to a
 * command name, and ptr2 is a pointer to the namespace that the Proc instance
 * will execute within. IF YOU CHANGE THIS, CHECK IN tclDisassemble.c TOO.
 */

static const Tcl_ObjType lambdaType = {
    "lambdaExpr",		/* name */
    FreeLambdaInternalRep,	/* freeIntRepProc */
    DupLambdaInternalRep,	/* dupIntRepProc */
    NULL,			/* updateStringProc */
    SetLambdaFromAny		/* setFromAnyProc */
};

#define LambdaSetIntRep(objPtr, procPtr, nsObjPtr)			\
    do {								\
	Tcl_ObjIntRep ir;						\
	ir.twoPtrValue.ptr1 = (procPtr);				\
	ir.twoPtrValue.ptr2 = (nsObjPtr);				\
	Tcl_IncrRefCount((nsObjPtr));					\
	Tcl_StoreIntRep((objPtr), &lambdaType, &ir);			\
    } while (0)

#define LambdaGetIntRep(objPtr, procPtr, nsObjPtr)			\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &lambdaType);			\
	(procPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
	(nsObjPtr) = irPtr ? irPtr->twoPtrValue.ptr2 : NULL;		\
    } while (0)

 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_ProcObjCmd --
 *
 *	This object-based function is invoked to process the "proc" Tcl
................................................................................
     *	   seem to make a lot of sense to verify the number of arguments we
     *	   are about to ignore ...
     *	 - could be enhanced to handle also non-empty bodies that contain only
     *	   comments; however, parsing the body will slow down the compilation
     *	   of all procs whose argument list is just _args_
     */

    if (Tcl_FetchIntRep(objv[3], &tclProcBodyType)) {
	goto done;
    }

    procArgs = TclGetString(objv[2]);

    while (*procArgs == ' ') {
	procArgs++;
................................................................................
    const char *procName,	/* Unqualified name of this proc. */
    Tcl_Obj *argsPtr,		/* Description of arguments. */
    Tcl_Obj *bodyPtr,		/* Command body. */
    Proc **procPtrPtr)		/* Returns: pointer to proc data. */
{
    Interp *iPtr = (Interp *) interp;

    register Proc *procPtr = NULL;
    int i, result, numArgs, plen;
    const char *bytes, *argname, *argnamei;
    char argnamelast;
    register CompiledLocal *localPtr = NULL;
    Tcl_Obj *defPtr, *errorObj, **argArray;
    int precompiled = 0;

    ProcGetIntRep(bodyPtr, procPtr);
    if (procPtr != NULL) {
	/*
	 * Because the body is a TclProProcBody, the actual body is already
	 * compiled, and it is not shared with anyone else, so it's OK not to
	 * unshare it (as a matter of fact, it is bad to unshare it, because
	 * there may be no source code).
	 *
	 * We don't create and initialize a Proc structure for the procedure;
	 * rather, we use what is in the body object. We increment the ref
	 * count of the Proc struct since the command (soon to be created)
	 * will be holding a reference to it.
	 */


	procPtr->iPtr = iPtr;
	procPtr->refCount++;
	precompiled = 1;
    } else {
	/*
	 * If the procedure's body object is shared because its string value
	 * is identical to, e.g., the body of another procedure, we must
................................................................................
    Tcl_Interp *interp,		/* Interpreter in which to find frame. */
    Tcl_Obj *objPtr,		/* Object describing frame. */
    CallFrame **framePtrPtr)	/* Store pointer to frame here (or NULL if
				 * global frame indicated). */
{
    register Interp *iPtr = (Interp *) interp;
    int curLevel, level, result;
    const Tcl_ObjIntRep *irPtr;
    const char *name = NULL;
    Tcl_WideInt w;

    /*
     * Parse object to figure out which level number to go to.
     */

................................................................................
	Tcl_GetWideIntFromObj(NULL, objPtr, &w);
	if (w < 0 || w > INT_MAX || curLevel > w + INT_MAX) {
	    result = -1;
	} else {
	    level = curLevel - level;
	    result = 1;
	}
    } else if ((irPtr = Tcl_FetchIntRep(objPtr, &levelReferenceType))) {
	level = irPtr->wideValue;
	result = 1;
    } else {
	name = TclGetString(objPtr);
	if (name[0] == '#') {
	    if (TCL_OK == Tcl_GetInt(NULL, name+1, &level)) {
		if (level < 0 || (level > 0 && name[1] == '-')) {
		    result = -1;
		} else {
		    Tcl_ObjIntRep ir;


		    ir.wideValue = level;
		    Tcl_StoreIntRep(objPtr, &levelReferenceType, &ir);
		    result = 1;
		}
	    } else {
		result = -1;
	    }
	} else if (TclGetWideBitsFromObj(interp, objPtr, &w) == TCL_OK) {
	    /*
................................................................................
    Namespace *nsPtr)		/* Pointer to current namespace. */
{
    Var *varPtr = framePtr->compiledLocals;
    Tcl_Obj *bodyPtr;
    ByteCode *codePtr;

    bodyPtr = framePtr->procPtr->bodyPtr;
    ByteCodeGetIntRep(bodyPtr, &tclByteCodeType, codePtr);
    if (codePtr == NULL) {
	Tcl_Panic("body object for proc attached to frame is not a byte code type");
    }


    if (framePtr->numCompiledLocals) {
	if (!codePtr->localCachePtr) {
	    InitLocalCache(framePtr->procPtr) ;
	}
	framePtr->localCachePtr = codePtr->localCachePtr;
	framePtr->localCachePtr->refCount++;
................................................................................
}
 
static void
InitLocalCache(
    Proc *procPtr)
{
    Interp *iPtr = procPtr->iPtr;
    ByteCode *codePtr;
    int localCt = procPtr->numCompiledLocals;
    int numArgs = procPtr->numArgs, i = 0;

    Tcl_Obj **namePtr;
    Var *varPtr;
    LocalCache *localCachePtr;
    CompiledLocal *localPtr;
    int new;

    ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr);

    /*
     * Cache the names and initial values of local variables; store the
     * cache in both the framePtr for this execution and in the codePtr
     * for future calls.
     */

................................................................................
				 * invoked. */
    Tcl_Obj *procNameObj,	/* Procedure name for error reporting. */
    int skip)			/* Number of initial arguments to be skipped,
				 * i.e., words in the "command name". */
{
    CallFrame *framePtr = ((Interp *)interp)->varFramePtr;
    register Proc *procPtr = framePtr->procPtr;
    ByteCode *codePtr;
    register Var *varPtr, *defPtr;
    int localCt = procPtr->numCompiledLocals, numArgs, argCt, i, imax;
    Tcl_Obj *const *argObjs;

    ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr);

    /*
     * Make sure that the local cache of variable names and initial values has
     * been initialised properly .
     */

    if (localCt) {
................................................................................
     * If necessary (i.e. if we haven't got a suitable compilation already
     * cached) compile the procedure's body. The compiler will allocate frame
     * slots for the procedure's non-argument local variables. Note that
     * compiling the body might increase procPtr->numCompiledLocals if new
     * local variables are found while compiling.
     */

    ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr);
    if (codePtr != NULL) {
	Interp *iPtr = (Interp *) interp;

	/*
	 * When we've got bytecode, this is the check for validity. That is,
	 * the bytecode must be for the right interpreter (no cross-leaks!),
	 * the code must be from the current epoch (so subcommand compilation
	 * is up-to-date), the namespace must match (so variable handling
	 * is right) and the resolverEpoch must match (so that new shadowed
	 * commands and/or resolver changes are considered).
	 */


	if (((Interp *) *codePtr->interpHandle != iPtr)
		|| (codePtr->compileEpoch != iPtr->compileEpoch)
		|| (codePtr->nsPtr != nsPtr)
		|| (codePtr->nsEpoch != nsPtr->resolverEpoch)) {
	    goto doCompilation;
	}
    } else {
................................................................................
#endif /* USE_DTRACE */

    /*
     * Invoke the commands in the procedure's body.
     */

    procPtr->refCount++;
    ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr);

    TclNRAddCallback(interp, InterpProcNR2, procNameObj, errorProc,
	    NULL, NULL);
    return TclNRExecuteByteCode(interp, codePtr);
}

static int
................................................................................
				 * the context of this procedure.) */
    Namespace *nsPtr,		/* Namespace containing procedure. */
    const char *description,	/* string describing this body of code. */
    const char *procName)	/* Name of this procedure. */
{
    Interp *iPtr = (Interp *) interp;
    Tcl_CallFrame *framePtr;
    ByteCode *codePtr;

    ByteCodeGetIntRep(bodyPtr, &tclByteCodeType, codePtr);

    /*
     * If necessary, compile the procedure's body. The compiler will allocate
     * frame slots for the procedure's non-argument local variables. If the
     * ByteCode already exists, make sure it hasn't been invalidated by
     * someone redefining a core command (this might make the compiled code
     * wrong). Also, if the code was compiled in/for a different interpreter,
................................................................................
     * procPtr->numCompiledLocals if new local variables are found while
     * compiling.
     *
     * Precompiled procedure bodies, however, are immutable and therefore they
     * are not recompiled, even if things have changed.
     */

    if (codePtr != NULL) {
	if (((Interp *) *codePtr->interpHandle == iPtr)
		&& (codePtr->compileEpoch == iPtr->compileEpoch)
		&& (codePtr->nsPtr == nsPtr)
		&& (codePtr->nsEpoch == nsPtr->resolverEpoch)) {
	    return TCL_OK;
	}

................................................................................
		Tcl_SetErrorCode(interp, "TCL", "OPERATION", "PROC",
			"CROSSINTERPBYTECODE", NULL);
		return TCL_ERROR;
	    }
	    codePtr->compileEpoch = iPtr->compileEpoch;
	    codePtr->nsPtr = nsPtr;
	} else {
	    Tcl_StoreIntRep(bodyPtr, &tclByteCodeType, NULL);
	    codePtr = NULL;
	}
    }

    if (codePtr == NULL) {
	Tcl_HashEntry *hePtr;

#ifdef TCL_COMPILE_DEBUG
	if (tclTraceCompile >= 1) {
	    /*
	     * Display a line summarizing the top level command we are about
	     * to compile.
................................................................................

    if (!procPtr) {
	return NULL;
    }

    TclNewObj(objPtr);
    if (objPtr) {
	ProcSetIntRep(objPtr, procPtr);



    }

    return objPtr;
}
 
/*
 *----------------------------------------------------------------------
................................................................................
 */

static void
ProcBodyDup(
    Tcl_Obj *srcPtr,		/* Object to copy. */
    Tcl_Obj *dupPtr)		/* Target object for the duplication. */
{
    Proc *procPtr;
    ProcGetIntRep(srcPtr, procPtr);


    ProcSetIntRep(dupPtr, procPtr);

}
 
/*
 *----------------------------------------------------------------------
 *
 * ProcBodyFree --
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
ProcBodyFree(
    Tcl_Obj *objPtr)		/* The object to clean up. */
{
    Proc *procPtr;

    ProcGetIntRep(objPtr, procPtr);

    if (procPtr->refCount-- <= 1) {
	TclProcCleanupProc(procPtr);
    }
}
 
/*
................................................................................
 */

static void
DupLambdaInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    register Tcl_Obj *copyPtr)	/* Object with internal rep to set. */
{
    Proc *procPtr;
    Tcl_Obj *nsObjPtr;

    LambdaGetIntRep(srcPtr, procPtr, nsObjPtr);
    assert(procPtr != NULL);

    procPtr->refCount++;


    LambdaSetIntRep(copyPtr, procPtr, nsObjPtr);
}

static void
FreeLambdaInternalRep(
    register Tcl_Obj *objPtr)	/* CmdName object with internal representation
				 * to free. */
{
    Proc *procPtr;
    Tcl_Obj *nsObjPtr;

    LambdaGetIntRep(objPtr, procPtr, nsObjPtr);
    assert(procPtr != NULL);

    if (procPtr->refCount-- <= 1) {
	TclProcCleanupProc(procPtr);
    }
    TclDecrRefCount(nsObjPtr);

}

static int
SetLambdaFromAny(
    Tcl_Interp *interp,		/* Used for error reporting if not NULL. */
    register Tcl_Obj *objPtr)	/* The object to convert. */
{
................................................................................

    if (interp == NULL) {
	return TCL_ERROR;
    }

    /*
     * Convert objPtr to list type first; if it cannot be converted, or if its
     * length is not 2, then it cannot be converted to lambdaType.
     */

    result = TclListObjGetElements(NULL, objPtr, &objc, &objv);
    if ((result != TCL_OK) || ((objc != 2) && (objc != 3))) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"can't interpret \"%s\" as a lambda expression",
		Tcl_GetString(objPtr)));
................................................................................
	    TclNewLiteralStringObj(nsObjPtr, "::");
	    Tcl_AppendObjToObj(nsObjPtr, objv[2]);
	} else {
	    nsObjPtr = objv[2];
	}
    }



    /*
     * Free the list internalrep of objPtr - this will free argsPtr, but
     * bodyPtr retains a reference from the Proc structure. Then finish the
     * conversion to lambdaType.
     */

    LambdaSetIntRep(objPtr, procPtr, nsObjPtr);
    return TCL_OK;
}



Proc *
TclGetLambdaFromObj(
    Tcl_Interp *interp,
    Tcl_Obj *objPtr,
    Tcl_Obj **nsObjPtrPtr)
{
    Proc *procPtr;
    Tcl_Obj *nsObjPtr;

    LambdaGetIntRep(objPtr, procPtr, nsObjPtr);

    if (procPtr == NULL) {
	if (SetLambdaFromAny(interp, objPtr) != TCL_OK) {
	    return NULL;
	}
	LambdaGetIntRep(objPtr, procPtr, nsObjPtr);
    }

    assert(procPtr != NULL);
    if (procPtr->iPtr != (Interp *)interp) {
	return NULL;
    }

    *nsObjPtrPtr = nsObjPtr;
    return procPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_ApplyObjCmd --
 *
 *	This object-based function is invoked to process the "apply" Tcl
................................................................................
int
TclNRApplyObjCmd(
    ClientData dummy,		/* Not used. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
{

    Proc *procPtr = NULL;
    Tcl_Obj *lambdaPtr, *nsObjPtr;
    int result;
    Tcl_Namespace *nsPtr;
    ApplyExtraData *extraPtr;

    if (objc < 2) {
................................................................................

    /*
     * Set lambdaPtr, convert it to tclLambdaType in the current interp if
     * necessary.
     */

    lambdaPtr = objv[1];
    procPtr = TclGetLambdaFromObj(interp, lambdaPtr, &nsObjPtr);



    if (procPtr == NULL) {


	return TCL_ERROR;


    }

    /*
     * Push a call frame for the lambda namespace.
     * Note that TclObjInterpProc() will pop it.
     */


    result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
    if (result != TCL_OK) {
	return TCL_ERROR;
    }

    extraPtr = TclStackAlloc(interp, sizeof(ApplyExtraData));
    memset(&extraPtr->cmd, 0, sizeof(Command));

Changes to generic/tclRegexp.c.

9
10
11
12
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15

16
17
18
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20
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22
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110
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...
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760
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...
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797


798
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800
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802
803
804
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclRegexp.h"


/*
 *----------------------------------------------------------------------
 * The routines in this file use Henry Spencer's regular expression package
 * contained in the following additional source files:
 *
 *	regc_color.c	regc_cvec.c	regc_lex.c
................................................................................
const Tcl_ObjType tclRegexpType = {
    "regexp",				/* name */
    FreeRegexpInternalRep,		/* freeIntRepProc */
    DupRegexpInternalRep,		/* dupIntRepProc */
    NULL,				/* updateStringProc */
    SetRegexpFromAny			/* setFromAnyProc */
};

















 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_RegExpCompile --
 *
 *	Compile a regular expression into a form suitable for fast matching.
................................................................................
				 * expression. */
    int flags)			/* Regular expression compilation flags. */
{
    int length;
    TclRegexp *regexpPtr;
    const char *pattern;

    /*
     * This is OK because we only actually interpret this value properly as a
     * TclRegexp* when the type is tclRegexpType.
     */


    regexpPtr = objPtr->internalRep.twoPtrValue.ptr1;

    if ((objPtr->typePtr != &tclRegexpType) || (regexpPtr->flags != flags)) {
	pattern = TclGetStringFromObj(objPtr, &length);

	regexpPtr = CompileRegexp(interp, pattern, length, flags);
	if (regexpPtr == NULL) {
	    return NULL;
	}

	/*
	 * Add a reference to the regexp so it will persist even if it is
	 * pushed out of the current thread's regexp cache. This reference
	 * will be removed when the object's internal rep is freed.
	 */

	regexpPtr->refCount++;

	/*
	 * Free the old representation and set our type.
	 */

	TclFreeIntRep(objPtr);
	objPtr->internalRep.twoPtrValue.ptr1 = regexpPtr;
	objPtr->typePtr = &tclRegexpType;
    }
    return (Tcl_RegExp) regexpPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeRegexpInternalRep(
    Tcl_Obj *objPtr)		/* Regexp object with internal rep to free. */
{
    TclRegexp *regexpRepPtr = objPtr->internalRep.twoPtrValue.ptr1;





    /*
     * If this is the last reference to the regexp, free it.
     */

    if (regexpRepPtr->refCount-- <= 1) {
	FreeRegexp(regexpRepPtr);
    }
    objPtr->typePtr = NULL;
}
 
/*
 *----------------------------------------------------------------------
 *
 * DupRegexpInternalRep --
 *
................................................................................
 */

static void
DupRegexpInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    TclRegexp *regexpPtr = srcPtr->internalRep.twoPtrValue.ptr1;

    regexpPtr->refCount++;
    copyPtr->internalRep.twoPtrValue.ptr1 = srcPtr->internalRep.twoPtrValue.ptr1;

    copyPtr->typePtr = &tclRegexpType;


}
 
/*
 *----------------------------------------------------------------------
 *
 * SetRegexpFromAny --
 *






>







 







>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>







 







<
<
<
<
>

<
<
|







<
<
<
<
<
<
<
<
<
<
<
<
|
<
<







 







|
>
>
>
>








<







 







|

|
<
>
|
>
>







9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
...
104
105
106
107
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109
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113
114
115
116
117
118
119
120
121
122
123
124
125
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128
129
130
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132
133
134
...
594
595
596
597
598
599
600




601
602


603
604
605
606
607
608
609
610












611


612
613
614
615
616
617
618
...
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770

771
772
773
774
775
776
777
...
788
789
790
791
792
793
794
795
796
797

798
799
800
801
802
803
804
805
806
807
808
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclRegexp.h"
#include <assert.h>

/*
 *----------------------------------------------------------------------
 * The routines in this file use Henry Spencer's regular expression package
 * contained in the following additional source files:
 *
 *	regc_color.c	regc_cvec.c	regc_lex.c
................................................................................
const Tcl_ObjType tclRegexpType = {
    "regexp",				/* name */
    FreeRegexpInternalRep,		/* freeIntRepProc */
    DupRegexpInternalRep,		/* dupIntRepProc */
    NULL,				/* updateStringProc */
    SetRegexpFromAny			/* setFromAnyProc */
};

#define RegexpSetIntRep(objPtr, rePtr)					\
    do {								\
	Tcl_ObjIntRep ir;						\
	(rePtr)->refCount++;						\
	ir.twoPtrValue.ptr1 = (rePtr);					\
	ir.twoPtrValue.ptr2 = NULL;					\
	Tcl_StoreIntRep((objPtr), &tclRegexpType, &ir);			\
    } while (0)

#define RegexpGetIntRep(objPtr, rePtr)					\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &tclRegexpType);		\
	(rePtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
    } while (0)

 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_RegExpCompile --
 *
 *	Compile a regular expression into a form suitable for fast matching.
................................................................................
				 * expression. */
    int flags)			/* Regular expression compilation flags. */
{
    int length;
    TclRegexp *regexpPtr;
    const char *pattern;





    RegexpGetIntRep(objPtr, regexpPtr);



    if ((regexpPtr == NULL) || (regexpPtr->flags != flags)) {
	pattern = TclGetStringFromObj(objPtr, &length);

	regexpPtr = CompileRegexp(interp, pattern, length, flags);
	if (regexpPtr == NULL) {
	    return NULL;
	}













	RegexpSetIntRep(objPtr, regexpPtr);


    }
    return (Tcl_RegExp) regexpPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
................................................................................
 *----------------------------------------------------------------------
 */

static void
FreeRegexpInternalRep(
    Tcl_Obj *objPtr)		/* Regexp object with internal rep to free. */
{
    TclRegexp *regexpRepPtr;

    RegexpGetIntRep(objPtr, regexpRepPtr);

    assert(regexpRepPtr != NULL);

    /*
     * If this is the last reference to the regexp, free it.
     */

    if (regexpRepPtr->refCount-- <= 1) {
	FreeRegexp(regexpRepPtr);
    }

}
 
/*
 *----------------------------------------------------------------------
 *
 * DupRegexpInternalRep --
 *
................................................................................
 */

static void
DupRegexpInternalRep(
    Tcl_Obj *srcPtr,		/* Object with internal rep to copy. */
    Tcl_Obj *copyPtr)		/* Object with internal rep to set. */
{
    TclRegexp *regexpPtr;

    RegexpGetIntRep(srcPtr, regexpPtr);


    assert(regexpPtr != NULL);

    RegexpSetIntRep(copyPtr, regexpPtr);
}
 
/*
 *----------------------------------------------------------------------
 *
 * SetRegexpFromAny --
 *

Changes to generic/tclScan.c.

1005
1006
1007
1008
1009
1010
1011

1012
1013


1014
1015
1016
1017
1018
1019
1020
	    } else if (flags & SCAN_SUPPRESS) {
		Tcl_DecrRefCount(objPtr);
		string = end;
	    } else {
		double dvalue;
		if (Tcl_GetDoubleFromObj(NULL, objPtr, &dvalue) != TCL_OK) {
#ifdef ACCEPT_NAN

		    if (objPtr->typePtr == &tclDoubleType) {
			dvalue = objPtr->internalRep.doubleValue;


		    } else
#endif
		    {
			Tcl_DecrRefCount(objPtr);
			goto done;
		    }
		}






>
|
<
>
>







1005
1006
1007
1008
1009
1010
1011
1012
1013

1014
1015
1016
1017
1018
1019
1020
1021
1022
	    } else if (flags & SCAN_SUPPRESS) {
		Tcl_DecrRefCount(objPtr);
		string = end;
	    } else {
		double dvalue;
		if (Tcl_GetDoubleFromObj(NULL, objPtr, &dvalue) != TCL_OK) {
#ifdef ACCEPT_NAN
		    const Tcl_ObjIntRep *irPtr
			    = Tcl_FetchIntRep(objPtr, &tclDoubleType);

		    if (irPtr) {
			dvalue = irPtr->doubleValue;
		    } else
#endif
		    {
			Tcl_DecrRefCount(objPtr);
			goto done;
		    }
		}

generic/tclStrToD.c became executable.

Changes to generic/tclStringObj.c.

4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
     * memory pointed to by that NULL pointer is clearly bogus, and
     * needs a reset.
     */

    stringPtr->allocated = 0;

    if (stringPtr->numChars == 0) {
	TclInitStringRep(objPtr, &tclEmptyString, 0);
    } else {
	(void) ExtendStringRepWithUnicode(objPtr, stringPtr->unicode,
		stringPtr->numChars);
    }
}

static int






|







4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
     * memory pointed to by that NULL pointer is clearly bogus, and
     * needs a reset.
     */

    stringPtr->allocated = 0;

    if (stringPtr->numChars == 0) {
	TclInitStringRep(objPtr, NULL, 0);
    } else {
	(void) ExtendStringRepWithUnicode(objPtr, stringPtr->unicode,
		stringPtr->numChars);
    }
}

static int

Changes to generic/tclStubInit.c.

1577
1578
1579
1580
1581
1582
1583





1584
1585
1586
    Tcl_FSUnloadFile, /* 629 */
    Tcl_ZlibStreamSetCompressionDictionary, /* 630 */
    Tcl_OpenTcpServerEx, /* 631 */
    TclZipfs_Mount, /* 632 */
    TclZipfs_Unmount, /* 633 */
    TclZipfs_TclLibrary, /* 634 */
    TclZipfs_MountBuffer, /* 635 */





};

/* !END!: Do not edit above this line. */






>
>
>
>
>



1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
    Tcl_FSUnloadFile, /* 629 */
    Tcl_ZlibStreamSetCompressionDictionary, /* 630 */
    Tcl_OpenTcpServerEx, /* 631 */
    TclZipfs_Mount, /* 632 */
    TclZipfs_Unmount, /* 633 */
    TclZipfs_TclLibrary, /* 634 */
    TclZipfs_MountBuffer, /* 635 */
    Tcl_FreeIntRep, /* 636 */
    Tcl_InitStringRep, /* 637 */
    Tcl_FetchIntRep, /* 638 */
    Tcl_StoreIntRep, /* 639 */
    Tcl_HasStringRep, /* 640 */
};

/* !END!: Do not edit above this line. */

Changes to generic/tclTest.c.

7078
7079
7080
7081
7082
7083
7084
7085
7086
7087
7088
7089
7090
7091
7092
7093
7094
7095
7096
7097
7098
7099
7100
7101
7102
    Tcl_SetObjResult(interp,
	    Tcl_NewStringObj("Tcl_ConcatObj is unsafe:", -1));

    emptyPtr = Tcl_NewObj();

    list1Ptr = Tcl_NewStringObj("foo bar sum", -1);
    Tcl_ListObjLength(NULL, list1Ptr, &len);
    if (list1Ptr->bytes != NULL) {
	ckfree(list1Ptr->bytes);
	list1Ptr->bytes = NULL;
    }

    list2Ptr = Tcl_NewStringObj("eeny meeny", -1);
    Tcl_ListObjLength(NULL, list2Ptr, &len);
    if (list2Ptr->bytes != NULL) {
	ckfree(list2Ptr->bytes);
	list2Ptr->bytes = NULL;
    }

    /*
     * Verify that concat'ing a list obj with one or more empty strings does
     * return a fresh Tcl_Obj (see also [Bug 2055782]).
     */

    tmpPtr = Tcl_DuplicateObj(list1Ptr);






|
<
<
<



|
<
<
<







7078
7079
7080
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7082
7083
7084
7085



7086
7087
7088
7089



7090
7091
7092
7093
7094
7095
7096
    Tcl_SetObjResult(interp,
	    Tcl_NewStringObj("Tcl_ConcatObj is unsafe:", -1));

    emptyPtr = Tcl_NewObj();

    list1Ptr = Tcl_NewStringObj("foo bar sum", -1);
    Tcl_ListObjLength(NULL, list1Ptr, &len);
    Tcl_InvalidateStringRep(list1Ptr);




    list2Ptr = Tcl_NewStringObj("eeny meeny", -1);
    Tcl_ListObjLength(NULL, list2Ptr, &len);
    Tcl_InvalidateStringRep(list2Ptr);




    /*
     * Verify that concat'ing a list obj with one or more empty strings does
     * return a fresh Tcl_Obj (see also [Bug 2055782]).
     */

    tmpPtr = Tcl_DuplicateObj(list1Ptr);

Changes to generic/tclTimer.c.

785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
...
814
815
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820
821
822
823
824
825
826
827
828
829
830
831
832
833
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    Tcl_WideInt ms = 0;		/* Number of milliseconds to wait */
    Tcl_Time wakeup;
    AfterInfo *afterPtr;
    AfterAssocData *assocPtr;
    int length;
    int index;
    static const char *const afterSubCmds[] = {
	"cancel", "idle", "info", NULL
    };
    enum afterSubCmds {AFTER_CANCEL, AFTER_IDLE, AFTER_INFO};
    ThreadSpecificData *tsdPtr = InitTimer();

    if (objc < 2) {
................................................................................
	Tcl_SetAssocData(interp, "tclAfter", AfterCleanupProc, assocPtr);
    }

    /*
     * First lets see if the command was passed a number as the first argument.
     */

    if (objv[1]->typePtr == &tclIntType
	    || objv[1]->typePtr == &tclBignumType
	    || (Tcl_GetIndexFromObj(NULL, objv[1], afterSubCmds, "", 0,
		    &index) != TCL_OK)) {
	index = -1;
	if (Tcl_GetWideIntFromObj(NULL, objv[1], &ms) != TCL_OK) {
            const char *arg = Tcl_GetString(objv[1]);

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                    "bad argument \"%s\": must be"
                    " cancel, idle, info, or an integer", arg));
            Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "argument",
                    arg, NULL);






|







 







|
<
|
|
<
<







785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
...
814
815
816
817
818
819
820
821

822
823


824
825
826
827
828
829
830
    Tcl_Obj *const objv[])	/* Argument objects. */
{
    Tcl_WideInt ms = 0;		/* Number of milliseconds to wait */
    Tcl_Time wakeup;
    AfterInfo *afterPtr;
    AfterAssocData *assocPtr;
    int length;
    int index = -1;
    static const char *const afterSubCmds[] = {
	"cancel", "idle", "info", NULL
    };
    enum afterSubCmds {AFTER_CANCEL, AFTER_IDLE, AFTER_INFO};
    ThreadSpecificData *tsdPtr = InitTimer();

    if (objc < 2) {
................................................................................
	Tcl_SetAssocData(interp, "tclAfter", AfterCleanupProc, assocPtr);
    }

    /*
     * First lets see if the command was passed a number as the first argument.
     */

    if (Tcl_GetWideIntFromObj(NULL, objv[1], &ms) != TCL_OK) {

	if (Tcl_GetIndexFromObj(NULL, objv[1], afterSubCmds, "", 0, &index)
		!= TCL_OK) {


            const char *arg = Tcl_GetString(objv[1]);

	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                    "bad argument \"%s\": must be"
                    " cancel, idle, info, or an integer", arg));
            Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "argument",
                    arg, NULL);

Changes to generic/tclUtil.c.

1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
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1397
1398
1399
1400
1401
1402
....
2085
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2095
2096
2097
2098
2099
....
3899
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3941
....
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3991
3992
3993
3994

3995
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3998
3999
4000
4001
    }

    /*
     * No matter what the caller demands, empty string must be braced!
     */

    if ((src == NULL) || (length == 0) || (*src == '\0' && length == -1)) {
	src = &tclEmptyString;
	length = 0;
	conversion = CONVERT_BRACE;
    }

    /*
     * Escape leading hash as needed and requested.
     */

    if ((*src == '#') && !(flags & TCL_DONT_QUOTE_HASH)) {
................................................................................
	    break;
	}
    }
    if (i == objc) {
	resPtr = NULL;
	for (i = 0;  i < objc;  i++) {
	    objPtr = objv[i];
	    if (objPtr->bytes && objPtr->length == 0) {
		continue;
	    }
	    if (resPtr) {
		if (TCL_OK != Tcl_ListObjAppendList(NULL, resPtr, objPtr)) {
		    /* Abandon ship! */
		    Tcl_DecrRefCount(resPtr);
		    goto slow;
................................................................................
    } else if (wide > INT_MAX) {
	*indexPtr = INT_MAX;
    } else {
	*indexPtr = (int) wide;
    }
    return TCL_OK;
}
 
/*
 *----------------------------------------------------------------------
 *
 * GetEndOffsetFromObj --
 *
 *      Look for a string of the form "end[+-]offset" and convert it to an
 *      internal representation holding the offset.
 *
 * Results:
 *      Tcl return code.
 *
 * Side effects:
 *      May store a Tcl_ObjType.
 *
 *----------------------------------------------------------------------
 */

static int
GetEndOffsetFromObj(
    Tcl_Obj *objPtr,            /* Pointer to the object to parse */
    Tcl_WideInt endValue,       /* The value to be stored at "indexPtr" if
                                 * "objPtr" holds "end". */
    Tcl_WideInt *widePtr)       /* Location filled in with an integer
                                 * representing an index. */
{

    Tcl_WideInt offset = 0;	/* Offset in the "end-offset" expression */

    if (objPtr->typePtr != &endOffsetType) {


	int length;
	const char *bytes = TclGetStringFromObj(objPtr, &length);

	if ((length < 3) || (length == 4)) {
	    /* Too short to be "end" or to be "end-$integer" */
	    return TCL_ERROR;
	}
................................................................................
		offset = (*(Tcl_WideInt *)cd);
		if (bytes[3] == '-') {
		    offset = (offset == WIDE_MIN) ? WIDE_MAX : -offset;
		}
	    }
	}

	/* Success. Free the old internal rep and set the new one. */
	TclFreeIntRep(objPtr);
	objPtr->internalRep.wideValue = offset;
	objPtr->typePtr = &endOffsetType;
    }

    offset = objPtr->internalRep.wideValue;


    if ((endValue ^ offset) < 0) {
        /* Different signs, sum cannot overflow */
        *widePtr = endValue + offset;
    } else if (endValue >= 0) {
        if (endValue < WIDE_MAX - offset) {
            *widePtr = endValue + offset;






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<
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|
<
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<
>







1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
....
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
....
3899
3900
3901
3902
3903
3904
3905

3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933

3934
3935
3936
3937
3938
3939
3940
3941
3942
....
3982
3983
3984
3985
3986
3987
3988
3989

3990
3991
3992
3993

3994
3995
3996
3997
3998
3999
4000
4001
    }

    /*
     * No matter what the caller demands, empty string must be braced!
     */

    if ((src == NULL) || (length == 0) || (*src == '\0' && length == -1)) {
	p[0] = '{';
	p[1] = '}';
	return 2;
    }

    /*
     * Escape leading hash as needed and requested.
     */

    if ((*src == '#') && !(flags & TCL_DONT_QUOTE_HASH)) {
................................................................................
	    break;
	}
    }
    if (i == objc) {
	resPtr = NULL;
	for (i = 0;  i < objc;  i++) {
	    objPtr = objv[i];
	    if (!TclListObjIsCanonical(objPtr)) {
		continue;
	    }
	    if (resPtr) {
		if (TCL_OK != Tcl_ListObjAppendList(NULL, resPtr, objPtr)) {
		    /* Abandon ship! */
		    Tcl_DecrRefCount(resPtr);
		    goto slow;
................................................................................
    } else if (wide > INT_MAX) {
	*indexPtr = INT_MAX;
    } else {
	*indexPtr = (int) wide;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * GetEndOffsetFromObj --
 *
 *	Look for a string of the form "end[+-]offset" and convert it to an
 *	internal representation holding the offset.
 *
 * Results:
 *	Tcl return code.
 *
 * Side effects:
 *	May store a Tcl_ObjType.
 *
 *----------------------------------------------------------------------
 */

static int
GetEndOffsetFromObj(
    Tcl_Obj *objPtr,            /* Pointer to the object to parse */
    Tcl_WideInt endValue,       /* The value to be stored at "indexPtr" if
                                 * "objPtr" holds "end". */
    Tcl_WideInt *widePtr)       /* Location filled in with an integer
                                 * representing an index. */
{
    Tcl_ObjIntRep *irPtr;
    Tcl_WideInt offset = 0;	/* Offset in the "end-offset" expression */


    while ((irPtr = Tcl_FetchIntRep(objPtr, &endOffsetType)) == NULL) {
	Tcl_ObjIntRep ir;
	int length;
	const char *bytes = TclGetStringFromObj(objPtr, &length);

	if ((length < 3) || (length == 4)) {
	    /* Too short to be "end" or to be "end-$integer" */
	    return TCL_ERROR;
	}
................................................................................
		offset = (*(Tcl_WideInt *)cd);
		if (bytes[3] == '-') {
		    offset = (offset == WIDE_MIN) ? WIDE_MAX : -offset;
		}
	    }
	}

	/* Success. Store the new internal rep. */

	ir.wideValue = offset;
	Tcl_StoreIntRep(objPtr, &endOffsetType, &ir);
    }


    offset = irPtr->wideValue;

    if ((endValue ^ offset) < 0) {
        /* Different signs, sum cannot overflow */
        *widePtr = endValue + offset;
    } else if (endValue >= 0) {
        if (endValue < WIDE_MAX - offset) {
            *widePtr = endValue + offset;

Changes to generic/tclVar.c.

250
251
252
253
254
255
256


















257
258
259
260





















261
262
263
264
265
266
267
...
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
...
567
568
569
570
571
572
573
574


575
576
577
578

579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606

607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
...
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
...
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
...
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705


706
707








708
709
710
711






712
713

714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
....
5760
5761
5762
5763
5764
5765
5766

5767
5768



5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779

5780
5781

5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
....
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808



5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831


5832
5833
5834
5835
5836
5837
5838
 */

static const Tcl_ObjType localVarNameType = {
    "localVarName",
    FreeLocalVarName, DupLocalVarName, NULL, NULL
};



















static const Tcl_ObjType tclParsedVarNameType = {
    "parsedVarName",
    FreeParsedVarName, DupParsedVarName, NULL, NULL
};





















 
Var *
TclVarHashCreateVar(
    TclVarHashTable *tablePtr,
    const char *key,
    int *newPtr)
{
................................................................................
 *	entry or array to be created). For example, the variable might be a
 *	global that has been unset but is still referenced by a procedure, or
 *	a variable that has been unset but it only being kept in existence (if
 *	VAR_UNDEFINED) by a trace.
 *
 * Side effects:
 *	New hashtable entries may be created if createPart1 or createPart2
 *	are 1. The object part1Ptr is converted to one of localVarNameType,
 *	tclNsVarNameType or tclParsedVarNameType and caches as much of the
 *	lookup as it can.
 *	When createPart1 is 1, callers must IncrRefCount part1Ptr if they
 *	plan to DecrRefCount it.
 *
 *----------------------------------------------------------------------
 */

Var *
................................................................................
{
    Interp *iPtr = (Interp *) interp;
    CallFrame *varFramePtr = iPtr->varFramePtr;
    register Var *varPtr;	/* Points to the variable's in-frame Var
				 * structure. */
    const char *errMsg = NULL;
    int index, parsed = 0;
    const Tcl_ObjType *typePtr = part1Ptr->typePtr;



    *arrayPtrPtr = NULL;

    if (typePtr == &localVarNameType) {

	int localIndex;

    localVarNameTypeHandling:
	localIndex = PTR2INT(part1Ptr->internalRep.twoPtrValue.ptr2);
	if (HasLocalVars(varFramePtr)
		&& !(flags & (TCL_GLOBAL_ONLY | TCL_NAMESPACE_ONLY))
		&& (localIndex < varFramePtr->numCompiledLocals)) {
	    /*
	     * Use the cached index if the names coincide.
	     */

	    Tcl_Obj *namePtr = part1Ptr->internalRep.twoPtrValue.ptr1;
	    Tcl_Obj *checkNamePtr = localName(varFramePtr, localIndex);

	    if ((!namePtr && (checkNamePtr == part1Ptr)) ||
		    (namePtr && (checkNamePtr == namePtr))) {
		varPtr = (Var *) &(varFramePtr->compiledLocals[localIndex]);
		goto donePart1;
	    }
	}
	goto doneParsing;
    }

    /*
     * If part1Ptr is a tclParsedVarNameType, separate it into the pre-parsed
     * parts.
     */


    if (typePtr == &tclParsedVarNameType) {
	if (part1Ptr->internalRep.twoPtrValue.ptr1 != NULL) {
	    if (part2Ptr != NULL) {
		/*
		 * ERROR: part1Ptr is already an array element, cannot specify
		 * a part2.
		 */

		if (flags & TCL_LEAVE_ERR_MSG) {
		    TclObjVarErrMsg(interp, part1Ptr, part2Ptr, msg,
			    noSuchVar, -1);
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "VARNAME", NULL);
		}
		return NULL;
	    }
	    part2Ptr = part1Ptr->internalRep.twoPtrValue.ptr2;
	    part1Ptr = part1Ptr->internalRep.twoPtrValue.ptr1;
	    typePtr = part1Ptr->typePtr;
	    if (typePtr == &localVarNameType) {
		goto localVarNameTypeHandling;
	    }
	}
	parsed = 1;
    }

    if (!parsed) {
	/*
	 * part1Ptr is possibly an unparsed array element.
	 */

................................................................................
	int len;
	const char *part1 = TclGetStringFromObj(part1Ptr, &len);

	if ((len > 1) && (part1[len - 1] == ')')) {
	    const char *part2 = strchr(part1, '(');

	    if (part2) {
		Tcl_Obj *arrayPtr;

		if (part2Ptr != NULL) {
		    if (flags & TCL_LEAVE_ERR_MSG) {
			TclObjVarErrMsg(interp, part1Ptr, part2Ptr, msg,
				needArray, -1);
			Tcl_SetErrorCode(interp, "TCL", "VALUE", "VARNAME",
				NULL);
		    }
................................................................................
		    return NULL;
		}

		arrayPtr = Tcl_NewStringObj(part1, (part2 - part1));
		part2Ptr = Tcl_NewStringObj(part2 + 1,
			len - (part2 - part1) - 2);

		TclFreeIntRep(part1Ptr);

		Tcl_IncrRefCount(arrayPtr);
		part1Ptr->internalRep.twoPtrValue.ptr1 = arrayPtr;
		Tcl_IncrRefCount(part2Ptr);
		part1Ptr->internalRep.twoPtrValue.ptr2 = part2Ptr;
		part1Ptr->typePtr = &tclParsedVarNameType;

		part1Ptr = arrayPtr;
	    }
	}
    }

  doneParsing:
................................................................................
	return NULL;
    }

    /*
     * Cache the newly found variable if possible.
     */

    TclFreeIntRep(part1Ptr);
    if (index >= 0) {
	/*
	 * An indexed local variable.
	 */

	Tcl_Obj *cachedNamePtr = localName(varFramePtr, index);

	part1Ptr->typePtr = &localVarNameType;
	if (part1Ptr != cachedNamePtr) {
	    part1Ptr->internalRep.twoPtrValue.ptr1 = cachedNamePtr;
	    Tcl_IncrRefCount(cachedNamePtr);


	    if (cachedNamePtr->typePtr != &localVarNameType
		    || cachedNamePtr->internalRep.twoPtrValue.ptr1 != NULL) {








		TclFreeIntRep(cachedNamePtr);
	    }
	} else {
	    part1Ptr->internalRep.twoPtrValue.ptr1 = NULL;






	}
	part1Ptr->internalRep.twoPtrValue.ptr2 = INT2PTR(index);

    } else {
	/*
	 * At least mark part1Ptr as already parsed.
	 */

	part1Ptr->typePtr = &tclParsedVarNameType;
	part1Ptr->internalRep.twoPtrValue.ptr1 = NULL;
	part1Ptr->internalRep.twoPtrValue.ptr2 = NULL;
    }

  donePart1:
    while (TclIsVarLink(varPtr)) {
	varPtr = varPtr->value.linkPtr;
    }

................................................................................
 *   twoPtrValue.ptr2: index into locals table
 */

static void
FreeLocalVarName(
    Tcl_Obj *objPtr)
{

    Tcl_Obj *namePtr = objPtr->internalRep.twoPtrValue.ptr1;




    if (namePtr) {
	Tcl_DecrRefCount(namePtr);
    }
    objPtr->typePtr = NULL;
}

static void
DupLocalVarName(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{

    Tcl_Obj *namePtr = srcPtr->internalRep.twoPtrValue.ptr1;


    if (!namePtr) {
	namePtr = srcPtr;
    }
    dupPtr->internalRep.twoPtrValue.ptr1 = namePtr;
    Tcl_IncrRefCount(namePtr);

    dupPtr->internalRep.twoPtrValue.ptr2 =
	    srcPtr->internalRep.twoPtrValue.ptr2;
    dupPtr->typePtr = &localVarNameType;
}

/*
 * parsedVarName -
 *
 * INTERNALREP DEFINITION:
 *   twoPtrValue.ptr1 = pointer to the array name Tcl_Obj (NULL if scalar)
................................................................................
 *			Tcl_Obj), or NULL if it is a scalar variable
 */

static void
FreeParsedVarName(
    Tcl_Obj *objPtr)
{
    register Tcl_Obj *arrayPtr = objPtr->internalRep.twoPtrValue.ptr1;
    register Tcl_Obj *elem = objPtr->internalRep.twoPtrValue.ptr2;




    if (arrayPtr != NULL) {
	TclDecrRefCount(arrayPtr);
	TclDecrRefCount(elem);
    }
    objPtr->typePtr = NULL;
}

static void
DupParsedVarName(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    register Tcl_Obj *arrayPtr = srcPtr->internalRep.twoPtrValue.ptr1;
    register Tcl_Obj *elem = srcPtr->internalRep.twoPtrValue.ptr2;

    if (arrayPtr != NULL) {
	Tcl_IncrRefCount(arrayPtr);
	Tcl_IncrRefCount(elem);
    }

    dupPtr->internalRep.twoPtrValue.ptr1 = arrayPtr;
    dupPtr->internalRep.twoPtrValue.ptr2 = elem;
    dupPtr->typePtr = &tclParsedVarNameType;


}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_FindNamespaceVar -- MOVED OVER from tclNamesp.c
 *






>
>
>
>
>
>
>
>
>
>
>
>
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>
>
>
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>
|



>
>
>
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>
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<







 







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<







<












|
<


>
|
<













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|
|
<
<
<
<
<







 







<
<







 







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<
<
<
<
<
<







 







<







<
|
<
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>
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>
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>
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<
<
>
>
>
>
>
>

<
>





|
<
<







 







>
|

>
>
>



<







>
|

>



|
<
<
<
<
<







 







|
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>
>
>




<







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|

|
<
<
|
<
<
<
<
>
>







250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
...
517
518
519
520
521
522
523
524
525

526
527
528
529
530
531
532
...
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620



621
622
623
624
625
626
627

628
629
630
631
632
633
634
635
636
637
638
639
640

641
642
643
644

645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660





661
662
663
664
665
666
667
...
668
669
670
671
672
673
674


675
676
677
678
679
680
681
...
682
683
684
685
686
687
688
689






690
691
692
693
694
695
696
...
710
711
712
713
714
715
716

717
718
719
720
721
722
723

724

725
726
727
728
729
730
731
732
733
734
735
736
737
738
739


740
741
742
743
744
745
746

747
748
749
750
751
752
753


754
755
756
757
758
759
760
....
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807

5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822





5823
5824
5825
5826
5827
5828
5829
....
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847

5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858


5859




5860
5861
5862
5863
5864
5865
5866
5867
5868
 */

static const Tcl_ObjType localVarNameType = {
    "localVarName",
    FreeLocalVarName, DupLocalVarName, NULL, NULL
};

#define LocalSetIntRep(objPtr, index, namePtr)				\
    do {								\
	Tcl_ObjIntRep ir;						\
	Tcl_Obj *ptr = (namePtr);					\
	if (ptr) {Tcl_IncrRefCount(ptr);}				\
	ir.twoPtrValue.ptr1 = ptr;					\
	ir.twoPtrValue.ptr2 = INT2PTR(index);				\
	Tcl_StoreIntRep((objPtr), &localVarNameType, &ir);		\
    } while (0)

#define LocalGetIntRep(objPtr, index, name)				\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &localVarNameType);		\
	(name) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
	(index) = irPtr ? PTR2INT(irPtr->twoPtrValue.ptr2) : -1;	\
    } while (0)

static const Tcl_ObjType parsedVarNameType = {
    "parsedVarName",
    FreeParsedVarName, DupParsedVarName, NULL, NULL
};

#define ParsedSetIntRep(objPtr, arrayPtr, elem)				\
    do {								\
	Tcl_ObjIntRep ir;						\
	Tcl_Obj *ptr1 = (arrayPtr);					\
	Tcl_Obj *ptr2 = (elem);						\
	if (ptr1) {Tcl_IncrRefCount(ptr1);}				\
	if (ptr2) {Tcl_IncrRefCount(ptr2);}				\
	ir.twoPtrValue.ptr1 = ptr1;					\
	ir.twoPtrValue.ptr2 = ptr2;					\
	Tcl_StoreIntRep((objPtr), &parsedVarNameType, &ir);		\
    } while (0)

#define ParsedGetIntRep(objPtr, parsed, array, elem)			\
    do {								\
	const Tcl_ObjIntRep *irPtr;					\
	irPtr = Tcl_FetchIntRep((objPtr), &parsedVarNameType);		\
	(parsed) = (irPtr != NULL);					\
	(array) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL;		\
	(elem) = irPtr ? irPtr->twoPtrValue.ptr2 : NULL;		\
    } while (0)
 
Var *
TclVarHashCreateVar(
    TclVarHashTable *tablePtr,
    const char *key,
    int *newPtr)
{
................................................................................
 *	entry or array to be created). For example, the variable might be a
 *	global that has been unset but is still referenced by a procedure, or
 *	a variable that has been unset but it only being kept in existence (if
 *	VAR_UNDEFINED) by a trace.
 *
 * Side effects:
 *	New hashtable entries may be created if createPart1 or createPart2
 *	are 1. The object part1Ptr is converted to one of localVarNameType
 *	or parsedVarNameType and caches as much of the lookup as it can.

 *	When createPart1 is 1, callers must IncrRefCount part1Ptr if they
 *	plan to DecrRefCount it.
 *
 *----------------------------------------------------------------------
 */

Var *
................................................................................
{
    Interp *iPtr = (Interp *) interp;
    CallFrame *varFramePtr = iPtr->varFramePtr;
    register Var *varPtr;	/* Points to the variable's in-frame Var
				 * structure. */
    const char *errMsg = NULL;
    int index, parsed = 0;

    int localIndex;
    Tcl_Obj *namePtr, *arrayPtr, *elem;

    *arrayPtrPtr = NULL;

  restart:
    LocalGetIntRep(part1Ptr, localIndex, namePtr);
    if (localIndex >= 0) {



	if (HasLocalVars(varFramePtr)
		&& !(flags & (TCL_GLOBAL_ONLY | TCL_NAMESPACE_ONLY))
		&& (localIndex < varFramePtr->numCompiledLocals)) {
	    /*
	     * Use the cached index if the names coincide.
	     */


	    Tcl_Obj *checkNamePtr = localName(varFramePtr, localIndex);

	    if ((!namePtr && (checkNamePtr == part1Ptr)) ||
		    (namePtr && (checkNamePtr == namePtr))) {
		varPtr = (Var *) &(varFramePtr->compiledLocals[localIndex]);
		goto donePart1;
	    }
	}
	goto doneParsing;
    }

    /*
     * If part1Ptr is a parsedVarNameType, retrieve the pre-parsed parts.

     */

    ParsedGetIntRep(part1Ptr, parsed, arrayPtr, elem);
    if (parsed && arrayPtr) {

	    if (part2Ptr != NULL) {
		/*
		 * ERROR: part1Ptr is already an array element, cannot specify
		 * a part2.
		 */

		if (flags & TCL_LEAVE_ERR_MSG) {
		    TclObjVarErrMsg(interp, part1Ptr, part2Ptr, msg,
			    noSuchVar, -1);
		    Tcl_SetErrorCode(interp, "TCL", "VALUE", "VARNAME", NULL);
		}
		return NULL;
	    }
	    part2Ptr = elem;
	    part1Ptr = arrayPtr;
	    goto restart;





    }

    if (!parsed) {
	/*
	 * part1Ptr is possibly an unparsed array element.
	 */

................................................................................
	int len;
	const char *part1 = TclGetStringFromObj(part1Ptr, &len);

	if ((len > 1) && (part1[len - 1] == ')')) {
	    const char *part2 = strchr(part1, '(');

	    if (part2) {


		if (part2Ptr != NULL) {
		    if (flags & TCL_LEAVE_ERR_MSG) {
			TclObjVarErrMsg(interp, part1Ptr, part2Ptr, msg,
				needArray, -1);
			Tcl_SetErrorCode(interp, "TCL", "VALUE", "VARNAME",
				NULL);
		    }
................................................................................
		    return NULL;
		}

		arrayPtr = Tcl_NewStringObj(part1, (part2 - part1));
		part2Ptr = Tcl_NewStringObj(part2 + 1,
			len - (part2 - part1) - 2);

		ParsedSetIntRep(part1Ptr, arrayPtr, part2Ptr);







		part1Ptr = arrayPtr;
	    }
	}
    }

  doneParsing:
................................................................................
	return NULL;
    }

    /*
     * Cache the newly found variable if possible.
     */


    if (index >= 0) {
	/*
	 * An indexed local variable.
	 */

	Tcl_Obj *cachedNamePtr = localName(varFramePtr, index);


	if (part1Ptr == cachedNamePtr) {

	    cachedNamePtr = NULL;
	} else {
	    /*
	     * [80304238ac] Trickiness here.  We will store and incr the
	     * refcount on cachedNamePtr.  Trouble is that it's possible
	     * (see test var-22.1) for cachedNamePtr to have an intrep
	     * that contains a stored and refcounted part1Ptr.  This
	     * would be a reference cycle which leads to a memory leak.
	     *
	     * The solution here is to wipe away all intrep(s) in
	     * cachedNamePtr and leave it as string only.  This is
	     * radical and destructive, so a better idea would be welcome.
	     */
	    TclFreeIntRep(cachedNamePtr);



	    /*
	     * Now go ahead and convert it the the "localVarName" type,
	     * since we suspect at least some use of the value as a
	     * varname and we want to resolve it quickly.
	     */
	    LocalSetIntRep(cachedNamePtr, index, NULL);
	}

	LocalSetIntRep(part1Ptr, index, cachedNamePtr);
    } else {
	/*
	 * At least mark part1Ptr as already parsed.
	 */

	ParsedSetIntRep(part1Ptr, NULL, NULL);


    }

  donePart1:
    while (TclIsVarLink(varPtr)) {
	varPtr = varPtr->value.linkPtr;
    }

................................................................................
 *   twoPtrValue.ptr2: index into locals table
 */

static void
FreeLocalVarName(
    Tcl_Obj *objPtr)
{
    int index;
    Tcl_Obj *namePtr;

    LocalGetIntRep(objPtr, index, namePtr);

    index++;	/* Compiler warning bait. */
    if (namePtr) {
	Tcl_DecrRefCount(namePtr);
    }

}

static void
DupLocalVarName(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    int index;
    Tcl_Obj *namePtr;

    LocalGetIntRep(srcPtr, index, namePtr);
    if (!namePtr) {
	namePtr = srcPtr;
    }
    LocalSetIntRep(dupPtr, index, namePtr);





}

/*
 * parsedVarName -
 *
 * INTERNALREP DEFINITION:
 *   twoPtrValue.ptr1 = pointer to the array name Tcl_Obj (NULL if scalar)
................................................................................
 *			Tcl_Obj), or NULL if it is a scalar variable
 */

static void
FreeParsedVarName(
    Tcl_Obj *objPtr)
{
    register Tcl_Obj *arrayPtr, *elem;
    int parsed;

    ParsedGetIntRep(objPtr, parsed, arrayPtr, elem);

    parsed++;				/* Silence compiler. */
    if (arrayPtr != NULL) {
	TclDecrRefCount(arrayPtr);
	TclDecrRefCount(elem);
    }

}

static void
DupParsedVarName(
    Tcl_Obj *srcPtr,
    Tcl_Obj *dupPtr)
{
    register Tcl_Obj *arrayPtr, *elem;
    int parsed;

    ParsedGetIntRep(srcPtr, parsed, arrayPtr, elem);







    parsed++;				/* Silence compiler. */
    ParsedSetIntRep(dupPtr, arrayPtr, elem);
}
 
/*
 *----------------------------------------------------------------------
 *
 * Tcl_FindNamespaceVar -- MOVED OVER from tclNamesp.c
 *

library/clock.tcl became executable.

library/encoding/tis-620.enc became executable.

library/msgs/af.msg became executable.

library/msgs/af_za.msg became executable.

library/msgs/ar.msg became executable.

library/msgs/ar_in.msg became executable.

library/msgs/ar_jo.msg became executable.

library/msgs/ar_lb.msg became executable.

library/msgs/ar_sy.msg became executable.

library/msgs/be.msg became executable.

library/msgs/bg.msg became executable.

library/msgs/bn.msg became executable.

library/msgs/bn_in.msg became executable.

library/msgs/ca.msg became executable.

library/msgs/cs.msg became executable.

library/msgs/da.msg became executable.

library/msgs/de.msg became executable.

library/msgs/de_at.msg became executable.

library/msgs/de_be.msg became executable.

library/msgs/el.msg became executable.

library/msgs/en_au.msg became executable.

library/msgs/en_be.msg became executable.

library/msgs/en_bw.msg became executable.

library/msgs/en_ca.msg became executable.

library/msgs/en_gb.msg became executable.

library/msgs/en_hk.msg became executable.

library/msgs/en_ie.msg became executable.

library/msgs/en_in.msg became executable.

library/msgs/en_nz.msg became executable.

library/msgs/en_ph.msg became executable.

library/msgs/en_sg.msg became executable.

library/msgs/en_za.msg became executable.

library/msgs/en_zw.msg became executable.

library/msgs/eo.msg became executable.

library/msgs/es.msg became executable.

library/msgs/es_ar.msg became executable.

library/msgs/es_bo.msg became executable.

library/msgs/es_cl.msg became executable.

library/msgs/es_co.msg became executable.

library/msgs/es_cr.msg became executable.

library/msgs/es_do.msg became executable.

library/msgs/es_ec.msg became executable.

library/msgs/es_gt.msg became executable.

library/msgs/es_hn.msg became executable.

library/msgs/es_mx.msg became executable.

library/msgs/es_ni.msg became executable.

library/msgs/es_pa.msg became executable.

library/msgs/es_pe.msg became executable.

library/msgs/es_pr.msg became executable.

library/msgs/es_py.msg became executable.

library/msgs/es_sv.msg became executable.

library/msgs/es_uy.msg became executable.

library/msgs/es_ve.msg became executable.

library/msgs/et.msg became executable.

library/msgs/eu.msg became executable.

library/msgs/eu_es.msg became executable.

library/msgs/fa.msg became executable.

library/msgs/fa_in.msg became executable.

library/msgs/fa_ir.msg became executable.

library/msgs/fi.msg became executable.

library/msgs/fo.msg became executable.

library/msgs/fo_fo.msg became executable.

library/msgs/fr.msg became executable.

library/msgs/fr_be.msg became executable.

library/msgs/fr_ca.msg became executable.

library/msgs/fr_ch.msg became executable.

library/msgs/ga.msg became executable.

library/msgs/ga_ie.msg became executable.

library/msgs/gl.msg became executable.

library/msgs/gl_es.msg became executable.

library/msgs/gv.msg became executable.

library/msgs/gv_gb.msg became executable.

library/msgs/he.msg became executable.

library/msgs/hi.msg became executable.

library/msgs/hi_in.msg became executable.

library/msgs/hr.msg became executable.

library/msgs/hu.msg became executable.

library/msgs/id.msg became executable.

library/msgs/id_id.msg became executable.

library/msgs/is.msg became executable.

library/msgs/it.msg became executable.

library/msgs/it_ch.msg became executable.

library/msgs/ja.msg became executable.

library/msgs/kl.msg became executable.

library/msgs/kl_gl.msg became executable.

library/msgs/ko.msg became executable.

library/msgs/ko_kr.msg became executable.

library/msgs/kok.msg became executable.

library/msgs/kok_in.msg became executable.

library/msgs/kw.msg became executable.

library/msgs/kw_gb.msg became executable.

library/msgs/lt.msg became executable.

library/msgs/lv.msg became executable.

library/msgs/mk.msg became executable.

library/msgs/mr.msg became executable.

library/msgs/mr_in.msg became executable.

library/msgs/ms.msg became executable.

library/msgs/ms_my.msg became executable.

library/msgs/mt.msg became executable.

library/msgs/nb.msg became executable.

library/msgs/nl.msg became executable.

library/msgs/nl_be.msg became executable.

library/msgs/nn.msg became executable.

library/msgs/pl.msg became executable.

library/msgs/pt.msg became executable.

library/msgs/pt_br.msg became executable.

library/msgs/ro.msg became executable.

library/msgs/ru.msg became executable.

library/msgs/ru_ua.msg became executable.

library/msgs/sh.msg became executable.

library/msgs/sk.msg became executable.

library/msgs/sl.msg became executable.

library/msgs/sq.msg became executable.

library/msgs/sr.msg became executable.

library/msgs/sv.msg became executable.

library/msgs/sw.msg became executable.

library/msgs/ta.msg became executable.

library/msgs/ta_in.msg became executable.

library/msgs/te.msg became executable.

library/msgs/te_in.msg became executable.

library/msgs/th.msg became executable.

library/msgs/tr.msg became executable.

library/msgs/uk.msg became executable.

library/msgs/vi.msg became executable.

library/msgs/zh.msg became executable.

library/msgs/zh_cn.msg became executable.

library/msgs/zh_hk.msg became executable.

library/msgs/zh_sg.msg became executable.

library/msgs/zh_tw.msg became executable.

library/tzdata/Africa/Asmara became executable.

library/tzdata/America/Atikokan became executable.

library/tzdata/America/Blanc-Sablon became executable.

library/tzdata/America/Indiana/Petersburg became executable.

library/tzdata/America/Indiana/Tell_City became executable.

library/tzdata/America/Indiana/Vincennes became executable.

library/tzdata/America/Indiana/Winamac became executable.

library/tzdata/America/Moncton became executable.

library/tzdata/America/North_Dakota/New_Salem became executable.

library/tzdata/America/Resolute became executable.

library/tzdata/Atlantic/Faroe became executable.

library/tzdata/Australia/Eucla became executable.

library/tzdata/Europe/Guernsey became executable.

library/tzdata/Europe/Isle_of_Man became executable.

library/tzdata/Europe/Jersey became executable.

library/tzdata/Europe/Podgorica became executable.

library/tzdata/Europe/Volgograd became executable.

Changes to macosx/tclMacOSXFCmd.c.

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 */

static void
UpdateStringOfOSType(
    register Tcl_Obj *objPtr)	/* OSType object whose string rep to
				 * update. */
{
    char string[5];
    OSType osType = (OSType) objPtr->internalRep.longValue;
    Tcl_DString ds;
    Tcl_Encoding encoding = Tcl_GetEncoding(NULL, "macRoman");
    unsigned len;

    string[0] = (char) (osType >> 24);
    string[1] = (char) (osType >> 16);
    string[2] = (char) (osType >>  8);
    string[3] = (char) (osType);
    string[4] = '\0';
    Tcl_ExternalToUtfDString(encoding, string, -1, &ds);
    len = (unsigned) Tcl_DStringLength(&ds) + 1;
    objPtr->bytes = ckalloc(len);
    memcpy(objPtr->bytes, Tcl_DStringValue(&ds), len);
    objPtr->length = Tcl_DStringLength(&ds);
    Tcl_DStringFree(&ds);
    Tcl_FreeEncoding(encoding);




}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */






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 */

static void
UpdateStringOfOSType(
    register Tcl_Obj *objPtr)	/* OSType object whose string rep to
				 * update. */
{
    const int size = TCL_UTF_MAX * 4;
    char *dst = Tcl_InitStringRep(objPtr, NULL, size);
    OSType osType = (OSType) objPtr->internalRep.longValue;
    int written = 0;
    Tcl_Encoding encoding;
    char src[5];

    TclOOM(dst, size);

    src[0] = (char) (osType >> 24);
    src[1] = (char) (osType >> 16);
    src[2] = (char) (osType >>  8);
    src[3] = (char) (osType);
    src[4] = '\0';

    encoding = Tcl_GetEncoding(NULL, "macRoman");
    Tcl_ExternalToUtf(NULL, encoding, src, -1, /* flags */ 0,
	    /* statePtr */ NULL, dst, size, /* srcReadPtr */ NULL,
	    /* dstWrotePtr */ &written, /* dstCharsPtr */ NULL);
    Tcl_FreeEncoding(encoding);

    (void)Tcl_InitStringRep(objPtr, NULL, written);
}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

tests/lsetComp.test became executable.

tests/notify.test became executable.

Changes to tests/obj.test.

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549
    lappend result [testobj refcount 1]
    lappend result [testobj refcount 2]
    lappend result [testbooleanobj set 2 0] ;# must copy on write, now 2 objs
    lappend result [testobj type 2]
    lappend result [testobj refcount 1]
    lappend result [testobj refcount 2]
} {{} 1024 1024 int 4 4 0 int 3 2}


test obj-32.1 {freeing very large object trees} {
    set x {}
    for {set i 0} {$i<100000} {incr i} {
	set x [list $x {}]
    }
    unset x






<







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541

542
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    lappend result [testobj refcount 1]
    lappend result [testobj refcount 2]
    lappend result [testbooleanobj set 2 0] ;# must copy on write, now 2 objs
    lappend result [testobj type 2]
    lappend result [testobj refcount 1]
    lappend result [testobj refcount 2]
} {{} 1024 1024 int 4 4 0 int 3 2}


test obj-32.1 {freeing very large object trees} {
    set x {}
    for {set i 0} {$i<100000} {incr i} {
	set x [list $x {}]
    }
    unset x

tools/encoding/ebcdic.txt became executable.

tools/encoding/tis-620.txt became executable.

Changes to unix/tclUnixSock.c.

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...
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	}
        if (hp != NULL) {
	    native = hp->h_name;
        } else {
	    native = u.nodename;
        }
    }
    if (native == NULL) {
	native = &tclEmptyString;
    }
#else /* !NO_UNAME */
    /*
     * Uname doesn't exist; try gethostname instead.
     *
     * There is no portable macro for the maximum length of host names
     * returned by gethostbyname(). We should only trust SYS_NMLN if it is at
     * least 255 + 1 bytes to comply with DNS host name limits.
................................................................................

    if (gethostname(buffer, sizeof(buffer)) > -1) {	/* INTL: Native. */
	native = buffer;
    }
#endif /* NO_UNAME */

    *encodingPtr = Tcl_GetEncoding(NULL, NULL);

    *lengthPtr = strlen(native);
    *valuePtr = ckalloc(*lengthPtr + 1);
    memcpy(*valuePtr, native, *lengthPtr + 1);





}
 
/*
 * ----------------------------------------------------------------------
 *
 * Tcl_GetHostName --
 *






<
<
<







 







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	}
        if (hp != NULL) {
	    native = hp->h_name;
        } else {
	    native = u.nodename;
        }
    }



#else /* !NO_UNAME */
    /*
     * Uname doesn't exist; try gethostname instead.
     *
     * There is no portable macro for the maximum length of host names
     * returned by gethostbyname(). We should only trust SYS_NMLN if it is at
     * least 255 + 1 bytes to comply with DNS host name limits.
................................................................................

    if (gethostname(buffer, sizeof(buffer)) > -1) {	/* INTL: Native. */
	native = buffer;
    }
#endif /* NO_UNAME */

    *encodingPtr = Tcl_GetEncoding(NULL, NULL);
    if (native) {
	*lengthPtr = strlen(native);
	*valuePtr = ckalloc(*lengthPtr + 1);
	memcpy(*valuePtr, native, *lengthPtr + 1);
    } else {
	*lengthPtr = 0;
	*valuePtr = ckalloc(1);
	*valuePtr[0] = '\0';
    }
}
 
/*
 * ----------------------------------------------------------------------
 *
 * Tcl_GetHostName --
 *

win/buildall.vc.bat became executable.

win/tclWinFile.c became executable.